i got hacked but cant see how
 

<a href="http://www.thetattooforum.com" target="_blank">www.thetattooforum.com</a> my site i noticed didnt seem to be running any ads so i checked it otu and its been hacked by some nobjockey

can anyone tell me how they did this and what i can do to prevent it from happening again.

thanks

what mods did you have and did you have html on for members? and are you on shared hosting?

Try reloading your index. php file in the forums folder. I know that has been how they have hacked me in the past, Some how they register then drop in the file. I haven't had any problems since I installed the hack that limits registration by e-mail, but that doesn't mean they still can't get in. I'm not sure how they do this but it's always been the answer to the way they have hacked me the 4-5 times they've done it.

I'd go back to using standard vBulletin without any hacks or modifications.