English versions of the theory test available, is that info up-to-date?
Yep, it's up to date.
Not long ago ( 1 year I think ) I had to take my polish driving license. And like you I didn't and I don't speak polish enough to take the theory test in polish, so I asked for the english version. You have to contact a few driving schools as I don't think everyone of them has an instructor who speaks english well enough( my instructor's wife being an english teacher helped me a lot in understanding what he couldn't find the english words for).
Not being a native english speaker made my life difficult as there were some different synonyms in the CD and in the book anyway after passing this minor obstacle I didn't have any problems. I don't know what changed with theory test, everybody says the same as you: IT'S UNBELIEVABLY DIFFICULT. But I think you shouldn't think that way, afterall it's not made to fail everybody :D.
After passing the theory test, I had the practical driving test, here I was told it's obligatory to have a translator with me. Not just somebody who speaks english but a certified translator. I payed him 100 PLN/hour and that was that. The examiner was a very nice guy who didn't seem to be trying to fail me(some of them do it)
P.S Hope that the examiner won't be some complete a-hole and you're done.