hi boss
im also using vegakits
i think for avr dev brd you need a special programmer
if your system is having serial port (9 pin)
you better go for “ponyprog”
with this software you can program your microcontroller
you just need a isp cable
even you can make it with few resistors
check over internet
if serial port is not avilable then better to go for usb progrmmers the are avilable every ware