Is it possible to update the mythtv programs and the mythplugins from svn, or do you have to wait until KnoppMyth gets updated? I know that there's been a recent upgrade to rc22, but I don't want to upgrade, partly because it's a problem with SATA (can't auto upgrade, at least not easily - haven't tried the "ide=reverse" boot option that can be used during installation). Another reason I dont want to upgrade is that I had some problem after installation with my wireless card - had to use another ndiswrapper than the one in KnoppMyth.
However, has anyone used svn and compiled mythtv, mythplugins and myththemes in KnoppMyth?

Search for threads about building MythTV from source. Various people including Cecil have posted instructions here and on the wiki. For example the sticky posting at the top of this sub-forum... http://mysettopbox.tv/phpBB2/viewtopic.php?t=4708