The easiest way I've found to drop the gas tank is to drop the 2 "straps" holding the tank on, they run under the tank, one on the passenger side, one on the driver side. You then have to start disconnecting fuel lines and other assorted lines, be sure to label everything, until the gas tank is free. Then I pulled the neck from the tank being careful to not break the rubber seal they use.
From there you pull the assembly out of the gas tank, the pump is in the assembly (sending unit, floater, regulator, etc). It's a pain to get the thing back in correctly so be sure you remember how it went in. The fuel pump is in there, very small thing considering what it's all in.
Just be sure to take your time and it's pretty straight forward coming out.