I moved your post to our “A-Star and Orangutan” subforum, since it seemed more appropriate.
You are correct; any programmer that supports in-system programming (ISP) and the ATmega328P can be used to program the Baby Orangutan B-328 robot controller; you do not have to use one of our AVR programmers. I do not expect other ISP programmers to have specific instructions for programming a Baby Orangutan.
Can you provide more details (e.g. tutorial link) on how you used the Arduino Uno to program the Baby Orangutan and post pictures showing how you have everything connected in your setup?