Well, I figured out what was going on. I was using an open source unzipping tool called IZArc, which is a great tool but apparently does have limitations. It seems that it wasn't actually extracting the file, so I downloaded a trial copy of WinZip, and extracted the file sucessufly. After unzipping the file properly into the install directory, I upgraded with the new rom and I must say I am please with the result. Other than the temporary double GPRS icon at the top, I have had no troubles with it. However, I've only been using since yesterday, so I can't say that I won't run into any. So far though, this is an amazing upgrade and now I can sync my Napster To Go files with it.

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Ascii stupid question, get a stupid Ansi.