Long time reader; first time poster/modder.
I've created a mod that reverts the post-1.4 main screen and music back to the pre-1.4 versions (replacing the Warpath-themed background and music). To use this mod, you will need to have the Mod Manager: http://www.twcenter.net/forums/showthread.php?t=240335
Prerequisites:
E:TW updated to v1.4
Download Link:
http://www.megaupload.com/?d=SPPIFATD
Instructions:
1. Unzip the file.
2. Place all files in the data directory.
3. Launch Mod Manager and select "original_theme_music" in the pack list.
4. Launch E:TW from Mod Manager.
This mod will not change any other music or themes added in v1.4.
Enjoy!