Hey Null,
I am new to Madriva as well. Not sure if you are a registered/paying member or not, but I used Kiosk and downloaded/installed the Mozilla bundle and it updated Firefox to a more up to date version. One back from current I believe. I also did the OpenOffice bundle to get version 2 of it, but after running the bundle installed noticed that both version 2 and the older version I first got when I bought PowerPack 2006 were still on the machine which is less then what I would have hoped for. I thought that it would install over top of the old version but that doesn't appear to be the case.
Not sure if this helps at all but thought I would share what little I knew...
good luck