I am not sure if I did this right...I did read what you posted though:
1. Are you using any Custom Content or mods ? Yes but I already uninstalled all of them.
2. If you are using mods, are you using any of the 'big ones' like Awesome Mod or Twallan’s mods? Yes but I already took them out of my folder.
3. If you're not using mod, did you never use them or did you take them out for the EP (as you are supposed to do)? Yes I did.
4. Did you update the mods you put back with a compatible version ? Yup.
5. Do you have Seasons or just the Patch ? I have Seasons and the patch.
6. Which Patch Level are you at ? 1.48
7. Did you start a new game or are you playing an existing ones ? I am playing an existing one.
8. Did you transfer an existing Sim over or are they new/Pre-Made ? I made new ones.
9. What town are you currently playing ? EA or Custom ? EA world: I believe Twinbrook.
10. What is your Operating System (Mac, XP, Vista, Win 7) Win 7.
11. Do you have the download or DVD Version of the game.
DVD Version of everyone (but the stuff packs). Download of WA
I get the file error like most people when downloading 1.50.
I really appreciate people like you trying to help us! Thank you so much!
EDIT: I have the beach stuff pack thing...I don't remember whats its called.