I want to draw your attention, especially by Czech Joomla users / admins that the Czech translation - complete (čeština) of the HIGHSLIDE JS for Joomla! (and its extension), is located on the web JardaR.eu
It is a complete translation of all elements of HIGHSLIDE JS for Joomla! (ie this is about):

Component

Configuration Component 2.5.0

Plugins for Component 2.0.x:

Highslide plugin 2.5.0
Highslide system plugin 2.5.0

Plugin for JCE 2.0

JCE 2.0+ HsExpander Plugin 2.0.20
JCE 2.0+ HsHtmlExpander Plugin 2.0.20

Extras for Highslide JS for Joomla Package

Imageloader 1.0.6 (module)
Imageloader 1.0.6 (plugin)

So it's still the most complete translation of HIGHLIDE JS for Joomla! at all:). Everything for Joomla! 2.5.x.

HIGHSLIDE JS for Joomla! is the best POPUP ENGINE for Joomla! and I hope it remains so. The author of the translation is a man with the nickname JardaR. It's in the Czech Republic (local) guy on translations for Joomla!