Hi there. My site http://www.idevzone.com which runs on joomla got hacked. I've not looked into the sites for several months and I've just discovered this Willing to pay someone to check my site's data and to restore them if can, because i do not know about it. I bought the site over. Thanks!
Do you have backups that can be used to restore from? Joomla/Mambo is a common target and has many, many exploits out there. If this is your own dedicated server I highly suggest having it secured - if its your own site then you need to update your script.
I'd read the thread at http://forum.joomla.org/index.php?topic=84594.msg433625 that has people discussing the various things they did to get their site back up. From what I can see, it wasn't very destructive.