Garry Mod Trouble, plz help! Options

[sunker]

ok i was downloading the CS:S version of garry mod(Garry Mod V7A) something like that and when i opened up the garrymod-cs folder i copied all of the stuff on the folder to the right places were my csstrike folders were.When i played cs:source i showed kinda a subway background or somethin and there were about 7 listed levels down the screen.The top one was gm_construct.I clicked it and when it loaded i tryed to join CT ot T but it said the teams were full! it didnt work.I could only spectate!Then i exit to the main menu and click create-server and clicked gm_construct.When it loaded it said that it was missing a model for the SMG gun.Plz someone i reaally want to play this mod only for CS:S and no probs PLEASE!