If you wanted easy, you picked the wrong chip. The FT232R is a simpler version and requires no external components.
As for interfacing. I'm not certain if the uC you are using has hardware UART, but I assume it does. It's pretty simple. Connect all the TX and RX pins to the opposing pins on the serial->USB converter. If you need flow control, connect the CTS/RTS lines as well. Then you just talk with regular serial communication with the PC.
If you install the virtual com port drivers on the PC side, you can talk to your uC like it is connected over a standard serial RS-232 port. If you want direct control, you can install their DLL's and use the DLL's to communicate with your uC while using C, VB, or whatever programming language you want on the PC side.
I don't have experience with the FT232BM, but I have been using the FT232R and it's truely a simple easy to use chip.
EDIT: There's alot of extra stuff on these chips to implement a fast transfer bit bang mode, and extra GPIO pins and stuff. Don't let all that confuse you, as it's unlikely you'll need or even want to use any of it.