…many muslims still practice old traditions (early christian and slavic paganism)…

And me as well as the other members of the forum, I assume, would like to know more about those practices and old Slavic traditions that Bosnian muslims preserved, not just the historical quarrelling about the Christian Bosnian Church and preaching of Hamzijski Islam (which are traits of the medieval Bosnians and Bosnian muslims respectively, but with little emphasis on Slavic heritage).

The Christian Bosnian Church did however preserved it's Slavic traits, and their traditions and rituals are surely interesting for anyone interested in the Slavic heritage… unfortunately it didn't preserve itself, so we can only speculate about their rituals and traditions.