[otrs] Postgres problem

[mohamad]

hello all

i am using redhat 9  ..
i was just wondering if i can use postgres  instead of mysql working ? 
if anyone has instructions on how to do that i would be very grate 
full... i got all of otr's working on my sql and apache on redhat   but 
my manager if very picky and wants to use postgres instead of mysql 
database..... anyways if you can help me out with step by step con fig i 
would be realy great  fully.