I've had this rose since spring 2009, and I'm noticing a trend with it. It's supposed to be a yellow blending to red-orange, but despite being in a location with more than enough sun to get gorgeous multihued blooms off the Sheila's Perfume right next to it... it's yellow. Sometimes it has pink edges, or it has a stripe of pinky-red where the bud was showing color for a few days, but for the most part, it's just yellow.
I'm going to try moving it to a sunnier spot this spring to see if the color shows up better, but so far, I am not impressed.