I managed to extract the harley.obj using the downloaded file from 3D Cafe ok. What I would now suggest is setting up the folder structure for your freebie ready to go into Poser, with the rte file inside the geometries folder. That can then be decoded into the geometries folder and the figure would be ready to use.
I think your readme should have a bit more info re the object file though. IE, 'the harley-d.prj file from the "harley-d.zip harley davidson made in the usa" at 3DCafe freestuff is required to decode the file.' Other than that, I see no problem. Again, if you want to send me the completed RTE zip to check out, then no problem (so long as the final filesize is less than 10meg).