You need a working test account from:
http://www.concordefsnet.com/misc/EFSnetFreeTestAccount.asp
The module calls the StoreID username, and the StoreKey Transaction Key.
You also need to fix the test server URLs, per my note in the Contributions section.
I just ran my first transaction on my test server.
Muddling through all this took me a few hours, but the actual work was minutes, as usual.
Best,
Ken