We are planning to upgrade a customer from 4.1(3) to 6.1(2). We have the 6.1(2) DMA output, but we do not have the 6.1(2) media to start the instllation from a DVD. We can only upgrade from an earlier 6.X version. can we still use the 6.1(2) DMA during the upgrade? in other words, Can I import the 6.1(2) DMA file if I am doing the 6.1(2) upgrade (as a patch) at the same time?