Car Seat Compatibility- Peg Perego Primo Viaggio SIP PRIOR to 2005 ONLY!

This is a huge problem for me. I bought this stroller primarily because it was listed as compatible with my infant car seat (2007 version). No websites that sell it ever mentioned anything about particular years' versions. Well, I got it and have removed the packaging, etc... it works great, wonderful features. I brought out the car seat and immediately noticed a problem.

To Zooper's credit, I emailed them directly about my issues and they were extremely prompt (to the tune of about half an hour) in responding that the Tango Double was only compatible with the Primo Viaggio SIP seats from 2005 or earlier. Huge problem for me- especially now that the box and packaging is gone. I adore the stroller, but losing the functionality of my infant seat is a pretty big deal, especially considering the price I paid for the stroller.