I reinstalled all, then patched to 1.2, then installed SV like you explained. I removed the files, but things did not change, but there is some news:
Playing normally M2TW, the function of "mouse over" does not work in all cases (not with your mod, nor with normal game). For example I cannot see a description of my relationship with the Pope, or the traits.
Concerning SV in detail, the "2nd turn" bug, still exist, in both campaigns, and with all factions, so i cannot play any campaign, because after two turns, the game locks up in another faction's one. I can use ESC and exit to main menu, but cannot go further. I tried to save the game, then reload, but it did not work