I am using asp.net web site administration tool to manage the different roles in my project (currently Customer and Administrator). During the development, in vs 2008, its very
If you are using a SQL Server instance, rather than the mapped database file in APP_DATA you can use the ASP.Net configuration tool by temporarily changing the Connection String for the database to point to your live database rather than the local one - this will enable you to edit the roles/users etc.
However, it's one of those areas where you should probably look at writing/finding a tool to edit/manage these properly.