I agree with Seffylight, all of you whos flaming this guy are being dickheads. The guy asked if the developers wanted an avatar, maybe he can do an icon or two, and he probably posted here because he didn't know about the private mailing system around here. He sees sees Tremulous, wonders if he can help, then gets made fun of. If the developers say "No", thats it, period, its not up to any of you to decide.
Listen Nick, I believe the Tremulous Devs has 2D artists that could make items such as avatars or other similar 2D work easily, so thats why everyone doubts they'll need help. Awhile back the Devs made a post seeking a 2D artist, I dunno if they're still looking for one, but show them what you could do and maybe something can happen. We don't know how good you are at your skills, so screenies of your work could help.