Patching Sims 3

[Charley]

Hiya, I have my sims 3 on another computer which doesn't have internet, and so i can actually use other peoples sims as it always says something is missing or failed import. Is there anyway I can patch my sims without going on the internet directly on that hard drive?

I have tried connecting the HD with Sims 3 on it to this computer as a secondary HD and do it that way but then it says that Sims 3 isn't installed so again cannot upgrade the patch.

I have also tried downloading the patches off the net and running them but they always find problems and don't update.