Office 2007 Trial Ware is Crippled

The HP 9500 came with a trial version of Microsoft Office Home and Student 2007 on it. Csv files that I opened while doing keyword research kept opening up in Excel 2007, which I couldn't use until I entered the key, which I was able to get with the Activation Assistant. Very handy. At least it was until I opened one of the aforementioned .csv files and was asked to activate Office 2007, which I did. Then I found that I could not cut or paste or even save the document unless I upgraded to the full(non-trial) version. Baleeted!@!@! Lame, totally lame. (Not only that, but when I uninstalled it, it removed some files that Office 2003 needed. What a piece of crap)