Errors:

Quote - workersPoserLuxExporter_workers.py", line 597, in write_sampler
print >> file, ' "integer initsamples" [%s]' % p.get("initsamples", 100000)
NameError: global name 'p' is not defined

should be gp.get instead of p.get

Quote - workersPoserLuxExporter_workers.py", line 195, in getImage
if node.Type() != poser.kNodeTypeCodeIMAGEMAP : return None
AttributeError: 'NoneType' object has no attribute 'Type'

 should be "if not node or node.Type() != poser.kNodeTypeCodeIMAGEMAP : return None" instead of "if node.Type() != poser.kNodeTypeCodeIMAGEMAP : return None

With those changes (and the "print "NORMALS",params.compute_normals" removed), my ibl without texture scene exports without error.