I recently restored my Asus Eee Pc so I had to start over from the beginning. I had a lot of help from the Eee Wiki.
First step, activating the Full Desktop mode: http://wiki.eeeuser.com/howto:getkde
Then, I had to get apt-get going to be able to install new programs easily. That included adding the Xandros Repositories to the apt-get source list, pinning and then adding the Debian Repositories.
After that, a simple apt-get install eclipse/junit/subversion and I was all set.