Sorry, your enquiry somehow escaped my attention.
Assuming that you already have Version 2 of your RoomPacks, there's no need to download them again for "legacy" Vienna MIR 1.3 right now. The changes of the most recent releases are only important for Vienna MIR Pro. There will be an update for some Venues in the near future that will include corrections for small inconsistencies, though - they might be useful to have for Vienna MIR 1.3, too.
BTW - as an owner of a "legacy" Vienna MIR license you are entitled to upgrade to MIR Pro for very little money (... actually it's free when you're already have VE Pro 5). -> http://www.vsl.co.at/en/211/497/1687/2002/2004/1692.htm
Kind regards,
/p
/Dietz - Vienna Symphonic Library