my forum got hacked and delete

[TNCclubman]

you might be able to restore some of it so all may not be lost.

Re-install vBulletin from fresh. Then open up the database they have backed up for you, even if its only half and the rest is lost. check which tables are complete in the backup, copy them to the clipboard, delete the table in your vBulletin with phpmyadmin, and run an sql query in the database (with phpmyadmin) by pasting what you have copied (the single table) in the big white square and click 'write'

Some parts may be saved this way instead of starting over. Hopefully your user table was in tact, thats the most important.