Lee - I hope that any responses will be to the thread and not your email. Also, I understand that leaving your email address lying around in plain text on the web is akin to actively soliciting spam. I could, of course, be wrong.
sa is a SQL Server account - trusted connections are for windows accounts. You need to check your connection string and ensure that there is no Trusted Connection = True or SSPI = True OR you need to connect as your windows account.