Cannot download nor install Sims 3 Store content

Thank you so  much. I am working on things slowly. I am still occasionally getting multiple downloads of the same item even though I only hit download once, but I delete the duplicates. I also noticed that I can only download about 3 or 4 items in a row before the launcher freezes. I'm not sure if that is because I am running a 64-bit computer. Anyway, it is going slow, but I am making forward progress. I really appreciate your help and advice!!!!