Old font licenses ... old account...

A long time ago I owned and operated a small book publishing company and we licensed a bunch of fonts. Due to some very unique circumstances, the machines were mothballed and put in storage and ignored for nearly a decade.

However, I am now in the position of needing to pull up documents and so forth from disks that no longer run ...ect .. and so forth. I'd like to link the set of licensed fonts to my current machine/id or else resurrect the old id. Any suggestions?

thanks.