I posted a new version of RMark. It requires R2.12.0 or higher. Note that with this version of R, a single package works for both 32 and 64 bit so there is no longer a separate 64 bit version. For linux, download the new source (not Windows binary) zip file and INSTALL the package. To do that you'll need to update R and Rtools. If installation from the zip file does not work, unzip into a directory and then use the r cmd INSTALL RMark command from the directory containng the RMark package. There are just a few minor fixes and an example of the CRDMS model that Andrew Paul created.
On the RMark phidot page we have acrhived all of the external (outside R) documentation for RMark in a single zip file. I added a pdf that shows all models in MARK (at the time Gary sent me list), the ones supported by RMark and the example data file in RMark if there is one, and the names of all the parameters in the model. I'll keep this updated as I add models supported by RMark. It has rather tiny print to fit each line on a page, so you'll want to use the zoom in Adobe reader.