When you installed the BIAB Hi-Q sounds, you must install it in the same place that SampleTank thinks its instruments are. After you do that, you need to open SampleTank and hit the Rescan button so that it properly sees the instruments.
See if that doesn't help.
John I actually do NOT want to use the HI-q sounds, I want to use the ST2L FULL library...but trying to get the HI-Q selector in BIAB to use those folders and not the BIAB ST Instruments is a tricky..
It is easy enough running ST via the standard vsti insert route, but I am trying to access them via the HI-Q drop down box...as I said this setting seems to be hard-wired to ONLY the BIAB Hi-Q folders. It is easy enough to tell BIAB where the folder are and install to the locations as you said, but actually getting BIAB picker to recognise them is another matter, well so far at least. I am still figuring it but I will get there eventually. I can use them with no probs via VSTi inserts

Dennis