As TV's Frink notes, if you're interested in getting hold of the other excellent ALIEN APPENDIX releases, they are available at FE.org too. Unlike Appendix #2 (Alien Redux:the virtual workprint) they are 'preservation' compilations filled with various goodies. Just check out the 'artists index' section on the 'preserve.co.cc' page.

The latest ALIEN APPENDIX (#7) has recently been completed and I don't think its on there yet, but all the details about it can be seen here - http://originaltrilogy.com/forum/topic.cfm/Alien-Appendix-7-The-ALIEN-SAGA-Archive/topic/11437/