I thought I saw something on the Arduino site or in the forums that explained how to program a Nano, Mini, Lilipad, etc by removing the chip from a Duemilanove or Decimilia and jumping three wires from it to the smaller board. I thought it was just passing the serial pins through to the smaller board. But I can't seem to find it now.
Does anyone know where this info is? Or even what I am talking about? Or am I just high? 
Thanks!
Or even what I am talking about?
Yes. I understood it was RX/TX/GND that needed to be connected. Don't have a link for you though.
Or am I just high?
I'm unable to evaluate that at this time.
--Phil.
if i understand right you might be able to extend this
http://www.geocities.jp/arduino_diecimila/bootloader/index_en.html I've used it to burn over 50 ics and it works!
The above option would work for burning the bootloader but my interpretation was the OP only needed to upload to an IC with the bootloader already on it.
In which case I think this is the information required: How to program a Mini using a normal Arduino NG
--Phil.
Thanks for all the replies. But I did find the page I had seen before:
The sixth image down shows jumpers form a regular Arduino to a Lilypad. This should be doable with almost any of the small boards that don't have a USB connector.
Cheers!
This should be doable with almost any of the small boards that don't have a USB connector.
You might also want to consider jumpering the reset line between the boards to allow the Arduino IDE to auto-reset when uploading.
Lefty