No probs, will get some pics later and upload them.
For the steerer I was thinking of using something that is straight (metal ruler), lay the edge against the steerer as see if its is straight. If there's a gap between the ruler an steerer then it's bent. As it was the stem you were having problems getting it on, it may be out at the top. Hopefully it's just the top few mm and you can trim it down.
The internals are really simple. Let air out and remove top cap. There's the oil. Below the oil is the damper. Think the z5's will only have a damper in one leg and the other will be a dummy shaft. The 'How to' will show it better than I can explain.
I'm still 100% certain on what you mean regarding the steer, but it's probably just me being dim
To be honest I didn't spend any time really in actually trying to work out what might be wrong with them. Was just trying to get the rest of the bike put together and was planning on sorting the steerer issue at the end. I have had to buy two 10mm spacers though as the steerer was little long. So there may be some room to cut a bit of it off. What do I then do about the star nut that's in there though? Guessing that's going to need to go a little further in before i cut any of the steerer anyway. Hopefully it will be easier to sort than cutting it anyway.