Anyone using both iBlacklist AND ToneFxs?

I am on a 3GS and whenever I enable iBlacklist my tone that I set for SMS in ToneFx does not sound , instead I get a default message tone. The tone I set for keyboard clicks never gets effected only the SMS tone. If the iBlacklist app is disabled then my SMS tone from ToneFxs works fine. Anyone else having this issue or can figure out why? I asked the iBlacklist people and they responded that it was a "hook" problem..but im not savy with programming.