EXS 24 Logic Sampler Users Group

Hi 
My exs doen't see my ontology upright bass download.Yes it is in 
the sampler instruments file,but they are quicktime aif files.Do I 
need to convert these to something else?
Paul Astles
ps I cannot email this egroup from outlook express,I keep getting 
bounced back refused by news group.I have been using this 
subject heading.I had to log on to the newsgroup to post this 
message.I'm a member of several egroups but have never had 
this problem before!