In need of help upgrading RA to v1.2

[psychoCHIPMUNKK]

Well, I'm not sure how to get my version updated.  I have to admit, I downloaded the game (v1.0), but only after my store-bought disc failed to install on my new computer.  When I go to install the update, it simply flashes up a DOS-looking window and then does nothing.  It might not be completely legit, but can anyone help me with the upgrade?  I really want to get this done so i can load this kick arse mod.

Thanks in advance

[Mr. Weedy]

You cannot patch downloaded versions. If it isn't already 1.20 version then you need to search topics closer.