Hmm...
If you try launching the film viewer through START MENU, does that work?
Did you rename that file to ahfilm.exe before trying to start it?
I do not think theres a patch for film viewer - its included in the game installment. Im not sure if me sending you the ahfilm.exe i have would work either, and to be honest, im not too hot trying that.
Simple solution, but needs a little time:
Back up all your custom settings for AH(That would include the Settings, Films, ahiiterr, skins folder, and - if you use custom ones, also the sounds and sights folders) by copying those folders to another place on your HDD. Then uninstall the game and delete the directory. Redownload the full versions from flyaceshigh.com and reinstall. Just copy all your backed up folders back into the new game installment and you should be good to go.