I have Lion and Snow Leopard (I have also burned the Lion installer dmg to a DVD if that matters). I just deleted the old hard drive and now I'm installing Snow Leopard. But how do I get a clean install of Lion? Or am I already going in the wrong direction? Thanks for any help.
To do a clean install of Lion just boot your system from the DVD you made with the Lion installer on it. Point the installer to put Lion on whatever drive/partition you have made for the Lion install. If you want a system with Snow Leopard and Lion, you will need to go into Disk Utility and partition you drive into two separate partitions.