Help please webmaster...?

[gazeranco]

Hello All,

I noticed in one of your posts that some noobish idiot abused a phpbb bug and hacked ur site (if you can even call it a hack) :P

Anyways while I insult this idiot he is actually cleverer than me on this stuff cos he has done it to one of my phpnuke sites that uses a phpbb board, can someone help me? I don't get it, my file structure is the same, and index.php hasnt changed so not sure where to look.. :)

Thanks