Maybe this will help...
If you've encountered the message, "Cannot Login Non-Admin" when attempting to login to the SalesLogix v7.5.1 Application Architect, a change to the usersecurity table may help. My co-worker says:
"Open the table in SQL Server Management Studio and find the type field in the Admin user row. Change the value to "W" to allow the admin user to login to Application Architect."
-Brianna