I used the DVB quality (better than anything around, as close as you'll ever get to DVD quality for those seasons) Bulgarian Video and combined it with the Russian English audio.
I also found by chance, a not quite as good copy from Russia, and yay, English and Russian in separate audio channels. Well, actually, English audio but Bulgarian recorded over it, not in a separate channel or file, no, just straight over it. Lately I stumbled across a much higher quality rip from a Bulgarian group shown on bcomedy in Bulgaria. The copies floating around - mostly Lifetime TV captures - are ridiculously bad in quality and out of order.
Also, been very annoyed Season 4, 5 and 6 were never released on DVD and probably never will be (licensing issues, contractual issues with appearing guest stars.and Sony sucks). So, been a huge fan of The Nanny TV Show since forever.