I dont think that is possible. As far as I know, you can use that copy until June. At that point it shuts down every 2 hours.
You can use a program they have that transfers all of your settings and files. Be sure to also backup your browser if you have links and add-ons you want to keep.
If you use firefox, look up the FEBE addon.
Here is info on the easy transfer program:
http://www.microsoft.com/windows/win...-transfer.aspx
All you need is a place to save the files the program creates.