Domestic Upgrades :
RG keeps offering Domestic Upgrade Certificates, stand-by at the airport; When you reach 25.000 miles - Smiles Silver - you receive 2 Domestic Certificates valid on any fare; So 2 @25K Q, 4 @50K Q & 6 @100K Q - They are not transferable and valid for 6 months. (Mines went unused ! )

International Upgrades :
Confirmable at time of reservation.
Miles accrued after Jan.1.2001 :
Upgrades allowed only from Economy (Y or B) and Business (C) fares. Upgrades from any other fare are not allowed.
Miles accrued before Jan.1.2001 :
Upgrades allowed from Economy: Y, M, B, H fares.
As a side note some RG FF I know are absolutely disgusted with this rule RG has imposed.

100K Customers get a guaranteed seat on 100% fully booked flights, on ANY class. Thus, Varig may find a seat for you... in FIRST ! It's not a nice perk, anymore.

As you may notice I just don't find Varig's program THAT nice when compared to others.

BlondeBomber, feel free to ask whatever additional questions I have not been clear enough.