Solution:

Click the About button (or press ALT + A)

.

(The above shows a "beta" build, it is important when contacting support to also state the build number)

This shows the version as 2.0, build 2780

If you have an Internet connection, click on the www.dtsearch.co.uk link and go to the Support page for Language Packs

http://www.dtsearch.co.uk/support/contents.htm