Have you tried using our trainer for STEAM to see if it works already?
Please PM me and in that PM link to a location where you saved the executable for this game and I can look at it.
This game is so old that STEAM doesn't even sell it anymore or have a page for it.
As the Steam game version is launching Uplay and our current trainer is working with the game I don't see the necessity for a dedicated Uplay trainer.
You can zip/rar/7z your game exe file (conviction_game.exe) and upload it here on to Google Drive/ Drop Box/ One Drive and post the link here.
Use trainer #2 for Steam if game was bought on Steam.