Speaking primarily as the author/dev of the AToW books, I have no quick and ready lists but....
One thing AToW did is ditch the endless addition of life modules that MW3rd/CBTRPG had going on, in favor of generic modules. AToW Companion added no new modules, but did establish variant rules to play with them, as well as rules for converting all previous editions of the game to AToW.
What this means? For all AToW modules, you just need the AToW core book to have all available modules; no others are necessary because there should be no new modules elsewhere. (The sole exception to this are the Era Digest/Era Report books, which simply provide historical data on what factions/modules need to be modified--and how--for their setting; they don't add new modules entirely, they just adjust for the specific time period.)
As to previous editions that are compatible, the AToW Companion conversion rules basically make all of them usable, so if you build a character using older rules, you can convert them quick and easy into AToW versions. The thing is, though, none of the life paths made for 3rd Ed are truly compatible with AToW directly, due to the change in core rulesets.
Does that help at all?
- Herb