I would buy an Age of Empires 2: The Conquerors expansion CD, or the Age of Empires 2: Gold Edition, which would include the Conquerors.
The 1.0c patch is available here on
Age of Kings heaven.
Ooh, the Windows 7 color problem. I think the UserPatch solved that. I don't remember how I used UserPatch directly, if I did at all. What I did was install the client software for Voobly matchmaking service. It will download the 1.0f (iirc) patches and the 1.5RC patches that Voobly had assembled from the Internet which includes the UserPatch graphics fixes.
bonus
I feel that the Forgotten Empires mod was the pinnacle of AoE2. This is compatible with Voobly, although everybody's moved on to WololoKingdoms which is a mod that converts the Steam Age2HD assets for use in Voobly.