Try these directions for putting a 2.0 layout into your 2.0 profile. You have to paste the 2.0 layout code into the CSS Box, here are directions to find the CSS box:
Make sure you are using 2.0 code. the old code for 1.0 will not work in 2.0 profiles. Also make sure you follow all the directions because if you don't clear old code the new layout wont work.