i read that once baby is used to pureed foods (after about 3 weeks or so), move up and introduce lumpier foods.
i went on the Heinz site and looked up their menus and pretty much followed what they had. also, the wholesome babyfood site is good too (the one that pp posted). go slow and introduce lumpier foods - your LO may gag which is normal. DD who is 11mos is still having lots of trouble with lumpier foods but i think that's my fault because i was afraid of giving it to her too early and now she's having a hard time :(