All the ST instruments you already own will work fine. The BiaB sound set is just a small sampling provided to get you started. The "Hi-Q" feature in BiaB provides a bit of convenience.

One way to get ST running is to use the button labeled "VSTi Synth." You will need to click on a few buttons and select from a few dropdown menus if you do it this way.

A quicker way is to use the "Hi-Q" command. Click on the "Hi-Q" command, pick an instrument sound, and all the steps involved in getting ST going are done for you. Now click on the "VST Synth" and you will find ST ready to go.

All of the ST instruments you already own should show up when you do this. But they all have to be in the sight folder. On my Win 7 machine, the correct folder is:

C:Program Files(V86)> IK Multiumedia > Sample Tank 2.5 > Instruments


Flatfoot sez: Call me when 'Talent-in-a-Box' is ready to ship! -- [8{>

Got some tunes on You Tube:
http://www.youtube.com/user/flatfoot50
.
My BiaB lesson site:
http://jdwolfe0.wixsite.com/learnbiab