The flash has a small cable which I think is the pc cable (you can see pics in the classifieds section).
I know I can get a optical slave trigger for a fiver but I'd rather not have to use the RTF.

"Your flash will work with any Pentax camera in Manual mode."
Can I mount the flash in the hot-shoe of a k10d?

Yeah, I really dont fancy the program A that much, I'd rather have an MX. But since this is only to take a few steps back into film, and the MX is "pricy" (ie pricier than what I wish)... and I want to give the camera back to my father in a better state than what I found it in...
Unfortunately the camera and sadly the lens are deaing... More on that later.

I'll check ebay for those cables and doublecheck you guys later if you dont mind

Cant find much info on this flash...
What I'd really like to do is to be able to shoot it off the camera. Can I do this with a TTL cable on the K10D?

The flash has 2 A modes and 1 M mode.
If I could make it shoot in an automated mode so as to work in accordance to what the settings on the camera that would be super, but the main thing is really to just make it flash. I almost always specify the power on the in-camera flash of the K10D, so I'm not worried with wasting time.
I also dont do much flash photography, and I'm mainly interested in using it for macro work, hence the use of a cable.
Another question is would this work with a Program A? I'm borrowing it from my father, I cant rest still seeing that 50mm F1.4 decaing in the bag

Realistically, you aren't likely to make fantastic pro iamges on that wedding. You know that, you friend knows that, so the pressure is off, a bit...
I shot a friends graduation (PhD), I had advised him to go with a pro (even if they were very expensive), but he said its ok, he just wants to get some kind of memory of the event (the pro would give him 1 or 2 pics only).
So I did the best I could with my K10D + 18-55mm mkII + sigma 70-210mmm.
What went well...
The K10D does a decent job in high ISO (I'd stick to 800 tops). Focusing was also not a problem. The kit lens is pretty good.
What went wrong...
The sigma is poor, very poor sharpness and very slow... I didnt know until the last minute that I could shoot inside the hall. I'd taken the Vivitar 200mm F3.5. I could have gotten better shots with more practice holding the lens or a monopod. I missed one vital shot.
I missed a shot of my friends mother hugging him after the cerimony because I was on the phone
The in-camera flash is fine in many situations as fill for outdoors, but as a main light it has its limitations.

I wasn't hired, but I wanted to be as "pro" as I could, be creative with the shots and do the best I could. I learned some things.
There are many advices on shooting weddings. For your situation, the best advice is try not to miss those vital shots, better or worse technically try not to miss them.
Try to know your location well to see what works.
Be on the look out for oppurtunities.
But if this person is a friend, try not to miss on the fun, after all they'll want that for you as well.

In terms of gear, if you have a friend with a DSLR, Pentax or otherwise, borrow it, or even a P&S, have a back-up!
A flash will be very helpfull, get any of the advised AF360, Metz48, they are the cheaper ones, but automated (AFAIK) with your camera. That'll leave you money for maybe a SMC-A 50mm F1.7 and an extra battery. This is a MF lens, but if you save it for some prepared shots of the bride and groom, you migth get some really nice results.
With luck, you might find a used flash and FA 50mm 1.4 for £250.

Sadly I dont own the FA, just the A 1.7 (which is very good).
But now, I'll have quibles with buying this "tiny piece of plastic with a non existing focus ring" (in all honesty, the only thing stoping me from buying it the fact that it feels nicer on the wallet to buying x amount of MF lenses from time to time instead of paying £150 for a focal length I already have

I had the chance to handle a FA 50mm 1.4 today. After using the SMC-A 50mm F1.7 and other old MF lenses and the newer AF lenses, I was convinced that no new AF could come close to the feeling of the old MFs. After trying the FA I still think the same, but I'm amazed about how nice the focus ring felt. I had seen pics and it seemed so small that I thought it useless.
I've tried a canon 50mm F1.4 (or 1.8 ) on a 5D, what a diference... I think even the pentax kit is nicer...

Any other AF that still keeps some great feel to its manual focusing?

Hey, looks good the new part of the shopping centre. I've gotta drop by some time. I'll leave my K10D at home though...

Updated the package.

Changes to come...
I'll put this for sale elsewhere and will include a flash that came with it.
I postponed my plans of going into flash photography, so instead of using this as slave I'll just include it in the package.

I understood just that from both the replys, and I thank you for them.
I was just pointing out to anyone else who migth be interest in just one of the items, that I can split them (although I would prefer to sell together).

I'll edit the original post to include this.

Hmm...
I was told in this forum to sell them together...
The P30n is a perfectly nice slr... and perfectly bland. Doesnt fetch much.

But this lens will get easily more than £30 in it self, £45 with no problems if it had both original caps.
I'll split it up, no problems...
PM me for any item.

PS: I know its a good lens, lens I got one for my K10D months ago