No, it's my understanding that unless someone else releases the updated version i.e. a third party packager like "the plf", then thats how it stays until the next version is released.
Otherwise you'd need to get into the realms of installing it from source. If you don't know how to do that then you're stuffed. I sort of do, but never used to do that, as I always used to get into a state when i tried.
Hence, if you go to easy urpmi
and set your sources for just about everything i.e. contrib, main, etc etc and make sure that you also have the plf sources, when you go into the MCC and do the software update or install (rpmdrake+), you'll sometimes see identical or very closely named/numbered packages. I always used to use the plf sourced packages, as they'd often be a little more up to date, but if it requires something as a dependency I would also pick the plf package (if one was suggested).
I read a recent interview with Gael Duval, and his comments reflected that when the 2005LE was released, that was just as a "united" version to tie the knot of mandrake/connectiva. Hence you'll see the main stuff says mandriva but the lesser stuff still branded with mandrake.
Maybe that helps some ?