I had no experience with this, but in fact it's very simple. I put the zip-File in the same folder as the glamour.exe, extracted the GlamourSaves.data and started the game. I clicked "Load Game", then the 4th button from top on the left (the one right above Kate's face) and the menu showed one save - and that's the one where you can "import from file".where to put save file?
Shortly after that I could load a savegame after 721 days of progress (Kate) with more or less 50% progress in the "Easy tasks"-quest.
I hope I could help!