The 2009_12_29_PA_12.09_patch.7z file you have requested: Modifications / Project Beta / Portal: Project-Alpha Patch 1 - 1.7mb is not available. Perhaps try browsing all files for the game Portal and upload any files you want to share or are missing. This is the only information we could locate:
Project-Beta is a full content mod for Portal. This mod will include, new textures, new models, new particles, and a new story mode. There are 2 Possible endings to the mod.