Analog Joystick Support in lr-mame2003

[Rignes]

Hello,

Possible newb question here but hopefully someone can point me in the right direction. I purchased a 2600-daptor for our Atari games but thought I'd try to get it to work in MAME for Arkanoid. According to the help page for the 2600-daptor I need to enable the joystick.

http://www.2600-daptor.com/2600-daptor.htm

Here is the relevant clip:
"In MAME/MESS, remember to enable the joystick. For paddle games, you will want to set the Joystick Deadband to 0.0."

After spending half a day experimenting and Googling I still haven't figured out how to enable the joystick in lr-mame2003.

To the best of my knowledge the 2600-daptor presents itself as an analog device.

Has anyone else used the 2600-daptor in MAME and if so how did you get it working?

Thanks.