I just discovered a problem with the tar.gz files that will affect Linux machines. If you are getting an error that says it can't find models.txt or parameters.txt it is because in the tar.gz file the inst directory is Inst and the files are named Models.txt and Parameters.txt. They should all be lower case. If you make those changes it will work. If you still have problems contact me and I'll send you a patched tar.gz file. I'll patch this in the next version on CRAN.
--jeff