We have a maintenance release for SimplyMEPIS! 3.3.1-1 contains
“This is a maintenance release of SimplyMEPIS 3.3.1 to add the Traveller Disc feature when running from CD or performing a fresh install. Also autoconfiguration support has been added for new Intel and Nforce4 motherboards.
Current users need only update the mepis-oscenter, meauto and meauto-data packages with apt-get or Synaptic. The new CD or iso is available from the MEPIS subscription site and the iso is available from the usual mirror sites. “
Read more about it here.