Well the original Star Wars Conquest was made for classic M&B. Swyter was the main dev, as far as I know. The mod was pretty much abandoned finished until they decided to port it to Warband (I guess Swyter had too many pestering fans ). Turmoil Across the Stars (previously known as Clone Wars Conquest) is a conversion of SWC that brings the mod into the Clone Wars era. DarthMongolTheUnwise is the main dev. It too was originally for classic M&B, but once SWC was brought to Warband, and the source was released, TAtS was also brought to Warband, and both the classic and Warband versions are being developed together. So to recap: SWC for Warband is the same as it was for classic, with a few improvements. It isn't actively developed anymore. TAtS is a conversion that's available both for classic and Warband, brings a ton of new content, and is actively developed (albeit slowly, since there aren't enough hands).