ok i cleared my database and now the install went fine just about to step 7.
Once step 7 went thru it gave me page cannot be displayed.
I tried refreshing and this is the error that showed up.
Database error in vBulletin 3.0.0 Release Candidate 4:
Invalid SQL: INSERT INTO datastore (title) VALUES ('vbi_eventcache')
mysql error: Duplicate entry 'vbi_eventcache' for key 1
mysql error number: 1062
Just my luck