homebrew board problems

Have you made a PCB or are you using a breadboard?

perfboard.

Serial or USB connection to the computer? Did you select

serial.

the correct serial device from the Tools > Serial Port menu?

yes.

Do you know if the computer can program other >Arduino boards?

I don't have any others, but this board can be programmed by bascom avr
and I get data to/from the serial port in the bascom terminal.

Are you using a 16 MHz clock?

I am using a 16MHz resonator.

Also, recheck the instructions at: >http://www.arduino.cc/en/Main/StandaloneAssembly as they were recently corrected.

will do !