Yes, I use Delphi 5 Pro, IBX 5.04 with FB 1.5 and they are work together
very well. I didn't experienced any errors or strange
behaviours except that TIBDataSet and etc. doesn't trim char fields
until the field object's FixedChar property is set to False.
But CHAR fields always set this property to True, only VARCHAR and TEXT
BLOB set it to False. But I need the trimming of all my CHAR fields,
so I had to rewrite the TIBCustomDataSet's InternalGetFieldData
function. That's all.

Regards: Alex