Kamerat-You lost me with your discrption of RX on adapter to TX(pin3) on 328P ?? are you saying that RX from the FDTI connects to TX on the 328Pthe circuit diagrams for the barebones just bring RX to RX and TX to TX . RX has the 10K resister.
For barebones systems, unless you need to use the serial monitor or have it communicate with the PC for some other reason, I think it's easier to include a 6-pin ICSP header on your board and program it via ICSP instead. You can even use your Arduino as the ICSP. See http://miscsolutions.wordpress.com/2011/08/09/prototyping-small-embedded-projects-with-arduino/. To install a 6-pin header on veroboard you need to cut 3 of the strips between holes, but this isn't difficult with a sharp knife.