to download the full source code and binary (swf) files of OOOGUI v0.1 (that is all you need to install it and give it a try), you have two choices:
svn checkout http://126.96.36.199/ooogui_repo/tags/ooogui_v0.1
NOTE: if you want to participate and commit code, contact us.
NOTE: OOOGUI is in pre-alpha testing, there are bugs and missing functionalities. we just decided to share code in this early phase to have some feedback from users.