why isnt this button working?

I just changed web hosters. My site was working fine on the old server but the Add button on the attached page wont work. When you click btnAdd it doesnt run the AddUser sub.

Ive got all the same files on the new server in the same directory structure.

The only difference is that everything went into my root dir on my old server and everything goes into a folder called wwwroot on the new server.

Any ideas how I can get this to work on the new server or any ideas on things to check?

Thanks in advance for any help!