I was working on a request when I needed a model that they did not have. I went into the tf2 folder and copied all of the material folders and pasted them into sfm and replaced some files. well I tried to open it and it tells me it cannot find the exe and then it tells me it cannot find the library files. well knowing I screwed up I went to the steam market place and was slapped in the face by the free button. well I clicked on it and it gave me the same message steam gave me I then ran to the sfm main page and clicked install but instead of doing that it gives me the same dam message steam and the market place gave me. can any one tell me where I can re install it steam seems to not have 2 brain cells to rub together to put a install button on it so I need your help.