The fimg_v0191.zip file you have requested: Tools and Utilities / FImg v0.191 - 414.42kb is not available. Perhaps try browsing all files for the game Quake and upload any files you want to share or are missing. This is the only information we could locate:
FImg is pretty much the best image utility for Quake modding, particularly when it comes to sprites. This new version fixed a bug in FImg as reported by Rich regarding an odd flipping issue.