For those of you who are in need of stereoscopic editing in Final Cut Pro 7, or just want to test it, Onsight has released a plugin that allows you to edit stereoscopic material in Final Cut Pro 7 (not in FCPX for the moment), including some basic stereoscopic adjustments such as convergence and alignment of the two views, among others.
You can download it from Onsight’s website:
Enjoy!