Amin,
Thanks for acting so quickly and I am sorry that you have to waste your time for things like this. A rather unfortunate byproduct of the web.
The good news of course is that seriouscompacts.com becomes popular around the globe!
There are a couple of things "bothering" me:
1. Could he left a backdoor?
2. Is there a way to use HTTPS instead of HTTP? with http it is easy to intercept passwords.
3. Is there a way to make signup a bit more challenging? I do realize that there are disadvantages but I do wonder if the pros outweigh the cons. There has been a lot of spam (also send to my email address)
Anyway, I am glad you solved it!
Thanks, Peter