I replaced a bulb on an 01 I/S yesterday. Best advice I can give is patience and perserverance. I alternated between tugging and side to side and up and down wiggles.

I do not know if this was the original bulb so I don't know how long it had been in there. I do know it was tuff to remove the connector.
You prolly already know of this link but in case you dont:
http://www.valkyrieriders.com/shoptalk/interstateheadlight.htm Good luck.