Error upgrading from 3.7.3 to 3.8.0

[TimJK]

Attempting to upgrade but on step 5 of upgrade process it throws this error up...

Step 5) Upgrade to vBulletin 3.8.0 Alpha 2 Complete!

Database error
The East Anglian Cruise database has encountered a problem.

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We apologise for any inconvenience.



Database error in vBulletin 3.7.3:

Invalid SQL:

SELECT prefix.*, prefixpermission.usergroupid AS restriction
FROM prefix AS prefix
LEFT JOIN prefixpermission AS prefixpermission ON (prefix.prefixid = prefixpermission.prefixid)
ORDER BY prefix.displayorder;

MySQL Error : Illegal mix of collations (latin1_general_ci,IMPLICIT) and (latin1_swedish_ci,IMPLICIT) for operation '='
Error Number : 1267
Request Date : Monday, February 2nd 2009 @ 11:32:28 AM
Error Date : Monday, February 2nd 2009 @ 11:32:28 AM
Script : http://eacruise.co.uk/install/upgrade_380a2.php?step=5
Referrer : http://eacruise.co.uk/install/upgrade_380a2.php?step=4
IP Address : 86.153.71.225
Username :
Classname : vb_database
MySQL Version : 5.0.51a-community