Lorraine,
I assemble face frames using face frame screws (two per joint), and I make the face frames so they overlap the cabinet sides by 1/4". Likewise, I make the cabinet sides 1/4" wider than the tops and bottoms and leave the 1/4" proud on the case when assembled. Then I run a 3/4" dado (for 3/4" sides) from top to bottom on the inside of the face frame, 1/4" in from each stile side. The extended side fits into this dado. Then the face frame is attached with glue in the dado and face frame screws from the outside of the top and bottom side of the bottom. I also dimension the lower stile to be flush with the inside of the cabinet. Solid method of construction, no exposed brad holes on FF's and easy to built. The dadoes also help insure everything is square. A Kreg Jig is the best investment you'll make if you are serious about doing your kitchen cabinets. The K3 Master is $139 at Lowes.
HTH. Rob -- BTW, did you get the files I sent?