Thanks for your prompt reply!

Basically I opened Query Analyzer and tried to run the sp_ABFixUserLoginLinks.sql script. The following errors poped up:

DBCC execution completed. If DBCC printed error messages, contact your system administrator.

Configuration option 'allow updates' changed from 1 to 1. Run the RECONFIGURE statement to install.

Server: Msg 207, Level 16, State 3, Procedure sp_ABFixUserLoginLinks, Line 37

Invalid column name 'Suid'.

Server: Msg 207, Level 16, State 1, Procedure sp_ABFixUserLoginLinks, Line 37

Invalid column name 'suid'.

Server: Msg 207, Level 16, State 1, Procedure sp_ABFixUserLoginLinks, Line 64

Invalid column name 'suid'.

Server: Msg 207, Level 16, State 1, Procedure sp_ABFixUserLoginLinks, Line 64

Invalid column name 'suid'.

Server: Msg 207, Level 16, State 1, Procedure sp_ABFixUserLoginLinks, Line 64

Invalid column name 'suid'.

Server: Msg 207, Level 16, State 1, Procedure sp_ABFixUserLoginLinks, Line 64

Invalid column name 'suid'.

DBCC execution completed. If DBCC printed error messages, contact your system administrator.

Configuration option 'allow updates' changed from 1 to 0. Run the RECONFIGURE statement to install.