We need experienced programmers, as well as translators, and documentation writers to help continuing development of the DebianInstaller.
Here's how to help:
Sign up to the debian-boot mailing list and introduce yourself.
Browse the subversion repository.
See installer/doc/devel/ in svn for developer documentation. read a quick overview of the design.
Get a subversion checkout of DebianInstaller
Check the TODO for tasks needing attention.
Fix any of the DebianInstaller/Bugs. Or check to see if bugs still exist.
Process installation reports. See DebianInstaller/ProcessingInstallationReports.
Translators, see the translation status page.
Another way to help is to test the DebianInstaller on your hardware, especially if you have access to non Intel computers.