The ms3d111.zip file you have requested: Tools and Utilities / Tools / Milkshape Version 1.1.1 - 363.67kb is not available. Perhaps try browsing all files for the game Quake III Arena and upload any files you want to share or are missing. This is the only information we could locate:
MilkShape 3D 1.1.0 - This version adds experimental Quake III Arena static model export. That means no animation and tags yet.