If you have a question about how to use, install, download, or otherwise operate RcmdrPlugin.IPSUR, then write to the IPSUR-help list at ipsur-help@lists.r-forge.org. It is a moderated list, which means that you need to register to be able to post messages freely. If you are not registered then every message you send will need to be approved in advance before it will be posted to the list and stored in the archives. Visit here for registration instructions.
If you find a bug or error, then please let us know on the IPSUR-devel list at ipsur-devel@lists.r-forge.org. This is also a moderated list; go here to register.