Hello and welcome, Dan.
I think I understand what they want done. Take a look at the chart here: Windows 7 Upgrade Paths
As far as I know, 7 Student is just like 7 Starter but with a student discount. Because of this, you can't really upgrade from Starter to Student. If you were using a full installation instead of an upgrade, you could simply install the new Windows 7 Student over the current Starter version.
Rolling back to XP means that you can perform an "upgrade" to any version of Windows 7, but it's more like a clean install.
If you still have questions, feel free to ask.
Devin
I think I understand what they want done. Take a look at the chart here: Windows 7 Upgrade Paths
As far as I know, 7 Student is just like 7 Starter but with a student discount. Because of this, you can't really upgrade from Starter to Student. If you were using a full installation instead of an upgrade, you could simply install the new Windows 7 Student over the current Starter version.
Rolling back to XP means that you can perform an "upgrade" to any version of Windows 7, but it's more like a clean install.
If you still have questions, feel free to ask.
Devin