Can't get sims 2 store edition saved games to work in Ultimate Collection

I recently switched from sims 2 double deluxe to Ultimate Collection. Now due to the store edition I can't play my saved neighborhood. Yes I tried and followed the instructions from http://www.simsnetwork.com/simpedia/the-sims-2/editions/the-sims-2/specials/restore-sims-2-store-edition-in-ultimate-collection I spent over a year in a half building up and playing Pleasentview and now I am very disappointed because I can't play it. As I said I followed the instructions. I pulled the files from sims 2 fun with pets collection and put them in the place the link said to and I changed the names in the registry as directed, I did it manually. I tried opening the game and as the link said, it said I was running the wrong version. So after that I went and dragged and made a short cut on my desk with a new application as directed. From what I could tell I did everything right but then when I tried opening the game a popup came up saying that some files have been corrupted. I tried redoing the whole process and the same thing happened. After that I reversed the process and went back to what I had before I did any of this. Now the game works but I can't play my old saves. If I would have known about this I most likely would not have installed ultimate collection. It took 23 hours to install, so you see I am not sure if I want to uninstall it and go back to double deluxe. However I don't want to loose my saved neighborhood. Like I said I can't see what I did wrong but others have had success with getting their saves to work, so why is this fix corrupting my files?