I finally found it!

I found this title with english subtitles available from http://www.ebay.com/itm/Vrchni-Prchni-DVD-1981-Czech-Comedy-English-Subtitles-Josef-Abrham-/141509965474?hash=item20f2a6b6a2

this dvd is also available from czechmovie.com
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czechmovie.com, you can buy any film at a 15% discount with the discount code FREE15!