If you switched from PC to OS X, you've probably noticed some dramatic changes between the two versions. I tried making the change myself, attempting to go the full e-Sword X route, and although there are some nice features on the OS X version of e-Sword, the unfortunate part, is that the Mac version didn't compare with what I was accustomed to doing on the PC. As you've also found, there's a gaping hole in having the same modules available, and it will probably take several years to catch up.
Long story short... although they both accomplish some of the same tasks, the Mac version and the PC version of e-Sword are two different animals. I've learned to adapt by using either Boot Camp, or WinOnX Pro. Using either of these can also have drawbacks, but it allows one to much more easily cross the border into Mac territory, while keeping the Word of God within our favorite program, e-Sword.
May God bless...