Both 2.0 and 2.1 work! except for minor errors
* for 2.0 you need to install the .NET 1.1 files before hand.
* for 2.1, just make sure you unblock the file by going to the help file's properties.
* and an error appears when starting 2.1 for the first time (i was going to save the message box, but i forgot to save it

) it was an "HKEY/something" error
and i found a text error. on the sample game for 2.0, you said
Space dismisses messages and pressing that does so. on 2.1, You still say
Space dismisses messages, but you need to press
RightCtrl to dismiss the message.