You unzip it using WinRAR, then you put it into the specific folder, like tactics goes to tactic folder in C

Documents and Settings\user\My Documents\Sports Interactive\Football Manager 2007\tactics
and training schedules goes into C

Documents and Settings\user\My Documents\Sports Interactive\Football Manager 2007\schedules
You will need to load the game, go to tactic and edit so that the game creates the tactic folder for you. same goes with schedules, you need to go to training -> edit -> import
hope that makes sense