After some research, I came across Perl's Audio::Scrobbler module and with some research on scrobbling I wrote this program. You'll have to have Audio::Scrobbler installed to use it and of course use moc installed...but it should just work with all the prerequisites installed. Basically, just run it with your username and password in the background (actually, you may want to pipe the output to a logfile or something...I'm just saying...) and it will scrobble what you're playing. Simple.
Contact me with any problems or concerns. This software is something I am putting out there with no guarantee that it will work for you or that I will help you with it, but it just might...and I just might...