I'd have had a bash at writing it myself, should only take a month or two =P
I'm really starting to like PHP, not such a chore now to start writing it. It's a wonder what reading some of the PHP manual can do lol.
There's probably a free script you could use if you look hard enough. After I coded a load of the arcade I saw a free script that seemed a lot better at the time. I did the facepalm thing but figured I may as well carry on as I'd already got started.
But I must admit I do like x10Exchange, efficient site and it does boost your traffic. I wish we could have a few more signups though, I think x10 should collate a list of all the other companies and websites they own and run, there's too many of them that I think are under-advertised. Maybe in the new site.....
-Luke.