For MapGuide 2008
Can you confirm the sizes of the following files:
DATA1.CAB (should be 34,809 KB)
SETUP.MSI (should be 1,401 KB)
If you have 34,796 and 1,402 then this is the eval version of Studio.
We have tested the install of the Licensed version over top of the Eval and the user must uninstall the Eval first. We have not encountered an instance where this fails or been able to replicate the problem discussed here.
Regards,
Dave