HELP!!!!!

Hello guys, I am running Windows on mac, and i am wondering if anyone knows how to take a screenshot on it.
I do not have the key next to f12 so i can not take the screenshots to become a full Crusader member.
Any advice will be much appreciated.
Thanks for the help

Do you hav xfire?
because i have no idea how 2 take screenshots but xfire makes it easy.

Yes i do have xfire, please tell me how to take pictures, it will be very helpful, but i am now a -Crusader- so it is good, but i still need to take screenshots.

If xfire is on simply press the scroll lock key and S (scroll lock+S)
this will take pictures.Then when you go to desktop after game it will ask you if you want to upload..you click yes.Then go to image shack, click browse, go to recent documents, screenshots,
right click screen shot and preview to make sure its what you want, then left click it, click host image, then a list will appear with like 5 diff links, choose the one all the way on the bottom, left click it then right click and copy, then go to our forums and post, then right click and paste to drop a link or if you want them to see the actual picture type BBC codes before and after paste...like this

also when you want to change youre signature you do the same thing but you do the bbc code and paste in youre signature options.

Hope this helps

Thank you all, this is alot of help, looking at my keyboard, i see only one problem, i have no scroll lock key, so i am looking for other ways

dl fraps and use f12 to take ss

Thank you this is much appreciated guys

one more question, where do I dl fraps? I am new to the screen-shot community.

u can dl the program from this website http://www.fraps.com/download.php . also fraps not only takes screenshots, but it will also take 30 second videos, and tell u how many frames per second u are getting in game (usefull to tell if u are lagging or not)

Thank you for the help Foe, I will begin work soon