Alliance are a serie of different mods. On the Star Wars GC, you can play the civil war Empire vs Rebel era + Black Sun and soon the Republic and CIS.
I have released at Firefoxccmods.com the last 7.3b patch and the 7.3bX addon. The 7.3b is a small patch for the 7.1b with some small improves and fixes.
The 7.3bX is a special version thought for people with crashes to desktop when the battles ends.
If you want install the 7.3bX, you will need the 7.1b version + 7.3b patch. It can be a upgraded 7.0b or a 7.2b. Always with with a full installation. I would not trust at a mods folder installation.
Unfortunatelly the 7.3bX does not add any campaign, from FOC, EAW or the new campaign. The features from these campaigns do not work very well with the additions in the mod and the Gold, Steam or GOG game versions. Perhaps with time it can be made. Other changes are the reinforces from heroes and other special units, now they are automatic, different.
Questions, problems, troubleshooting, all them in the Firefoxccmods.com forum.