Did you try to translate from the translators progams?
Star menu >> all programs >> ugnx >> translators >> IGES.
I think if use this way the translation will be completed.
Rgds,
Sormane
Project leader
Mallory LTDA
www.mallory.com.br
It works for me too! You must be select the target body and after select the tool body(remember: don't press the mb2 after selected the target body). If you are receiving the message: non-manifold solid, you have a zero thickness on this step.