AVR-Chat

I am trying to program a mega8 chip (actually I have tried 3 different
ones) and I keep getting errors entering programing mode.  I am using
the STK500 board and AVR Studio version 4.09.  The chips are the flat
quad package and I think that is where my problem is arising since I
must use program off of the stk500 board (which I have never done
before).  I made a quick pcb
(http://www.dpicts.com/ForumPics/mega8a-2.jpg) to attach to the 6 pin
connector on the stk500 to program the chip.  I am not changing any
jumpers or anything on the stk500 (maybe this is my problem).  I have
made 4 different PCBs thinking that I had a trace wrong or broken, but
all pcbs and all three chips have failed.  Anyone have any suggestions
as to what I might be doing wrong?
Thanks,
Daniel