Most of us are happy with publicity. Most of us would also be happy to have our photos used -- but asking first is always good.
I'm not even sure what I have in my photobucket account still -- I just toss things in there then forget. You're welcome to use any of it though. There are folders for specific events in there... probably something from spring war or octoberfest would be best.
http://s75.photobucket.com/albums/i293/Silthen_Ru/Or there are other users with better photos.
You should give us a link to your site when it's ready.