"You should be good, as the minimum specs are the same regardless of the version.
You may run into things running a little slower as there are more features (turned on) in Pro than in Starter, but you can turn most of those additional features off. Getting more RAM for the netbook would probably help that situation as well.
You can get Specs and the Upgrade Advisor here.
You can go abouts getting the upgrade by using the Windows Anytime Upgrade stuff built into Windows 7."