I don't know if they make one, but I doubt it. Another solution would be to buy a seatpost shim to convert the 31.6 mm to 27.2 mm. Then you could use Profile's seatpost.
aww i went to my local bike store to try and get one of those posts for my 1990 peugeot!! not hapening!...... it totally sucks, you can go up at least with an adapter, i swear peugeot made their stem 26.2/4 because it was too freakin small..... i love the bike, but i dont hate sitting so far back to pedal.
Thanks for the tips. I did a little research, and it turns out that Thomson makes a setback seatpost in 31.6mm that can be reversed into a forward seatpost, HOWEVER, it's expensive and it doesn't bring you very far forward. Profile Designs fast forward plus a shim might be the way to go for tris.