Mark319--welcome to the forum. Be sure to check out the Voom Important Information and FAQ forum. It has lots of answers to just about any question you might have on equipment. Here is the answer on how to determine what version of the software you have:
Which software version do I have?
There are several ways to check your STB software version. Here is the simplest one. On your VOOM remote, press "Help" and then "Info". You should see three lines of version info. The last line should look like this: "Nep:610", where 610 is the software version. Currently, 610 is the latest released version. It is also referred to as "HAL 00.06.10" or as "Software Version 1.10". If the Help-Info sequence doesn't work for you, you might have an older version. Try this sequence instead: press "VOOM" button followed by "Info". You should see a similar Version Info screen. The following five versions have been officially released:
00.06.10 (nep: 600, aka Software Version 1.10) - Released on July 27, 2004
00.06.00 (nep: 600, aka Software Version 1.04) - Shipped with some new STBs in July, 2004
00.05.68 (nep: 568) - April 2, 2004
00.05.5c (Nep: 55c) - March 22, 2004
00.05.08 (Nep: 508) - October (?) 2003
Regarding DVI vs. Component. Try both. They are active at the same time, so you can easily compare between the two. For me, component is good, but DVI is better. Many people have posted that the component connection shows truer color, but DVI shows better detail. Pick whichever one looks better to you.