The convict.zip file you have requested: Tools and Utilities / Thief Fan Mission Files - 397.78kb is not available. Perhaps try browsing all files for the game Thief and upload any files you want to share or are missing. This is the only information we could locate:
This files is required by owners of the original Thief: The Dark Project to play fan missions, if DromEd is not installed. To use, simply extract the archive's contents to the main Thief directory. Thief Gold owners do not require this file.