Since there are some CtP1 units that aren't available in CtP2 (e.g. Legion), I urge Activision to make the CtP1 sprites available to us for custom unit creation.
Since those sprite files are embedded in archives in CtP1, I don't know how I would extract the actual .spr file, so it would help greatly if they were made available for download.
Heck, I'd love it if Activision made a whole bunch of extra sprites available - but at least the CtP1 sprites, please!