I read most of the threads about java problems and I still can't figure out what to do. Here's my problem:

So I dl the newest version and then try to install it. But it keeps stoping at this step and says "unable to find C:\DOCUMEN~1\Locals\~Temp\jrestub.exe"

Well, that's not the whole string of it but overall LW cant run the jrestub.exe file which is java. This file is on my computer and not missing. I tried to remove Java from my computer through Add/Remove programs but I can't find it on the list. I tried to find the file and install it but i won't install. I tried to dl the new version of java but it won't install either. What in the heck do i do now? I've been working on this for the past 3 hours. Please helpppp!!!!!!!!!!!!!