Well, I will point out that when I ran it it was much less intricate as the assassins were the PCs. The interesting stuff happened later when the party was hunting down and rolling up his trade routes along the Black Path.
However, why I thought you might find it useful is that the party is largely the antithesis of Torm. Freewheeling, apparently care-free, steal from the rich, give to the poor, kill the evil guys and the law be damned sorts. I also seem to recall Torm and his church aren't a fan of those who harp. Plus there's a tiefling, a drow, and the guy's name is Blackhand for Torm's sake! They must be evil!
A large part is how it's presented. You need to give the players every chance to be prejudiced and jump to conclusions. Jaresh and Grey have Harper pins, and the rest had talismans of non-detection (and Cesair had a permanent Alter Self). Rifling Jaresh's pack would a lot turn up a number of vials of poisons and Bolts of Human/Elf/whatever slaying. Jaresh also happens to be a Zhent (the ethnic group) by birth.
Now, since Torm's got a hate on for Bane, Zhentarim may not work, but I'm sure something could be used in it's place, and there's plenty of other cities for this to happen in.