Hey
From what I can tell you are looking for a free SSH server, I did a quick search of sourceforge.net, here are a few things that I found you might want to look at....
http://sourceforge.net/projects/jta/
I am not sure if this will help, infact I think it will send you in the completely wrong direction. So I would avoid it, infact the only reason this is in here is because I didnt want to delete it because I thought it was kinda cool. Someone should really start and SSH server project on Sourceforge.net
http://www.openssh.com/
This is the pretty tried and true system, I have used it on my Linux firewalls with putty on my windows box, I am 95% sure you can run it on your windows box successfully.
http://www.globalscape.com/products/ftp_servers.asp?CMP=KNC-BC101504
I know GlobalScape has a good FTP client, I havent tried this product in particular but I am sure you could deploy it on your windows box and test out your app.
And if you have the finichal means you may want to pick up MacOS X Server, I am 75% sure it has an SSH Server built in. But then again as I am assuming you are a college student ,for you have the time to play World of Warcraft, post on this message board and research SSH servers, I am guessing this is out of the question
Well I hope this helped, or at least it could be a referance for someone else to stumble upon...
-Chris