You could use FontLab to do this, but it's a heck of a lot more expensive than the font was in the first place! (Retail price around $600 I think.)
I expect the next version of "TransType" will do this, but the current version does not. This is unfortunate, since it is much more reasonably priced (around $100 I think)
Both programs are from the same folks: http://www.fontlab.com
Regards,
T
Thomas Phinney
Fonts Program Mgr.
Adobe Systems