If you need to upgrade your Linguist's Software product, you can check the
upgrade cost here.
How to tell what version you
own:
For Windows:
View the README file. For products that install onto the Start menu, the
Readme file is on the Start menu in the product program group. For other Windows
products see the Readme file on the CD or floppy disk.
For Macintosh: Place the product diskette in the floppy drive. Click once on the
disk icon and from the Finder menu choose File | Get Info (or type Command-i).
The product version number is in the Comments field.