Issue with getting files to stick

[Retroavenger]

I have been having an issue with the client where i download files and unzip them to my documents. i can start and play the game fine. but the fallowing day, i have to unload the files again into the documents because a file cannot be located. i only have a few more days on my unzip trial and its very aggravating to have to do this eveyr time i want to play the game. its even more of a pain knowing that i only have a few days until i cannot play this game anymore. is there another way to get a download other than a zip file?