Where can I get the conversion rails for the Delta Soho Crib purchased at Babies R' Us?

I'm having the same problem and BRU is telling me that it doesn't convert to a toddler bed, only a day bed. I'm waiting for a response from the manufacturer

***maybe this will help...i have the same crib and can't find a kit, but i found this online...

http://www.deltaenterprise.com/pdf/7786_New_Soho.pdf