Version 0.41 has been released. The only changes it contains are a few settings to make it work on Steam (geez I can't believe this was all pre-Steam days!). These were the good old days of Half-Life modding. If only we could return to such simple times <3!
Maybe one day I'll get off my lazy butt and work on a sidescrolling HL mod that I started, but lost the source code for. It was originally for the Galileo HL mod. I also worked on another mod project called Penumbra. Since then the name was used with another game, and I think maybe a HL2 mod. Too bad it never came to fruition.