skytrain10,
I am sorry, but there is one VEB FWD design that You did not yet list.
There are two jet powered 155 variants, but these have two engines: one version mounted on top of the wings (a la VFW614), and the other version mounted at the 11 and 1 o´clock position of the fuselage, and do indeed not look like the challenge plane. That one appears an earlier design than the Jet 155, despite having a higher number.
Tu.114
EDIT: Correction
Last edited by Tu.114; 19th Feb 2009 at 18:54.