tmp directory vulnerable?
 

My tmp directory was vulnerable and hackers or something compromised it and installed scripts that tried to brute force attack other servers from my server.

Now my host deleted it and now my vBulletin is messing up db error after error, can't access PMs and now can't access threads or posts!

Please help what do I do?
Was running lastest version fo 3.8.1 PL series have tried repairing and optimizing tables giving error about tmp files because they don't exist!

Can't create/write to file '/tmp/STuJsbTM'
Can't create/write to file '/tmp/STuJ2HoR

Am now trying to upgrade to 3.8.2 but can't turn vB off can't access settings etc without db error!:
Database error in vBulletin 3.8.1:

Invalid SQL:

SELECT setting.*, settinggroup.grouptitle
FROM settinggroup AS settinggroup
LEFT JOIN setting AS setting USING(grouptitle)
WHERE settinggroup.displayorder 0
ORDER BY settinggroup.displayorder, setting.displayorder;

MySQL Error : Can't create/write to file '/tmp/#sql_4197_0.MYI' (Errcode: 13)
Error Number : 1
Request Date : Tuesday, April 7th 2009 @ 09:08:23 AM
Error Date : Tuesday, April 7th 2009 @ 09:08:23 AM
Script : http://www.egamingsupply.com/forum/a...ons.php?null=0
Referrer : http://www.egamingsupply.com/forum/a...dex.php?do=nav
IP Address : 68.39.170.48
Username : Monarch
Classname : vB_Database
MySQL Version : 5.0.51a-community

Many different kinds of errors I have no idea what to do am trying to upgrade to 3.8.2 will it work am already uploading if it doesn't what do I do!? :o :(