I believe the 2007 requires the older, "V1" Mirage drive if it does not have the "click and go or V2" mounting hardware installed...I think the Mirage drive changed in 2009.
MirageDrives are interchangeable. You can use the newest drives in older boats. You would have to remove the alignment pins... that's it. The newest spine has molded-in alignment pins, so a hack saw is required to remove them.
Further background on compatibility:
Older drives require a drum shaft change to work properly in a newer click and go equipped boat. That is related to the click and go lever opening while pedaling. The older drum shafts would rotate in the spine and "walk" the levers open... we added splines to the drum shafts to stop that on newer drives.