I am unable to edit data from a data access page I created.

I can scroll through the data (SQL Server 2000 source)
I have set the sctions on the page to allow editing / adding etc
I am logging in using sa (sql server SysAdmin login)
I can edit the records if I edit the table directly using SQL Enterprise Manager...

but I just cannot edit via the page.. This is my first attempt at creating a data access apage and am stumped...

Thanks in Advance