You can try first to simply clear the cache by doing this:
• Go to Settings/Application/Manage Applications select Market, and clear the Data/cache

If that doesn’t work, then try this:
• Go to Settings/Application/Manage Applications select Market, and clear the Data/cache
• Power off the phone and physically -remove- your SD memory card.
• Power on, and install the app without your memory card inserted.
• Installation Successful!
• Once the game has been installed properly, reinstall your SD card.
• You can then go to Settings/Application/Manage Applications select Drift Mania and Move to SD card.

If none of those methods worked, please contact us using the Support Page and make sure to include your device model and OS version so our support team can find the problem.