How to create universe on BEX Query???

Hi All,

I am new to BEX. I awant to create a universe on top of Bex Query.

I tried to create a connection in Universe Designer but not able to find the specific driver.

So tried to create a connection on IDT,

I tried to create a OLAP connection, but no sure which driver to select.

can some one help me to use correct connection.

I need to create a universe based on a bex query (Single source).

My doubt it, which connection i need to create, OALP or Relational???

Can some one suggest the steps to create a universe on top of bex!

Note: Using Business Objects 4.1 Environment

Thanks.