worked like a charm, thanks!!!
one clarification: the login does get processed but the after-login redirect fails because sclogin isn't inserting the port number into the URL. if you manually edit the resulting URL you will see that you are logged in.
this looks like a very nice login module and I'm hoping it will work fine for what I need. But, on my staging/testing site, which I have running on localhost:8888 on my laptop, when you try to process a login, sclogin ignores the alternate port of 8888 and crafts the login assuming the site is on port 80, which doesn't work in this case. Seems like this should be an easy fix. Thanks!