OSPF in MPLS vpn

Hi,
I've run into a situation that is giving me a hard time :(

CE1 - PE1 ... PE2 - CE2 - R

CE-PE links are using OSPF area 1, CE2 - R is OSPF area 0.
To get area 1 routes as intra area, a sham link is set between PE1 and PE2.

Now here's the catch. R routes get to CE2 (an ABR) and type 3 LSRs do
get to CE1 over the sham link. So CE1 sees R routes.
But PE2 and PE1 do not.

I fail to understand why... wouldn't mind a litle help :)

-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net