Hi Friendly Fog,
they want you to go through the line yourself (or with help from friends, whomever). The policy is not to have a CM help. I've read many reports of this policy being inforced. So, count on that and act accordingly.
However, sometimes magic happens. I did WDW solo last year and use a powerchair or manual for very short distances (which is very much set towards my body, no way I could sit in a rental without major problems, let alone selfpropel it. They are way to heavy for me to even get out of a burning house if need be). So no way I was going to selfpropel through the lines.
I checked up on my info beforehand, had the pamphlets with me in the park and still somehow forgot about the line when looking at POTC and deciding I wanted to do it. Sure enough, as soon as I approached POTC a CM came to me and told me about the need to transfer. Well darn! I didn't put much into it, just told him I was wondering how I could've forgotten that after reading up on it and 'oh well, guess no POTC for me, these things can happen'. We talked for a very short while and I was totally about to go to a next ride. Then the CM told me to hold on and called in another CM over the radio to work the line/wheelchair service. As he told me, I deserved some magic and POTC could not be missed. So before I knew it, he took me backstage and to FOTL.

We had a boat to ourselves and actually went twice in a row while he told me all about the ride, it's history etc. All the while making such a big fuss about 'special pirate coming through, argh'. To be honest; I was stunded he walked the preverbial extra miles and did this for me.
So I know some (probably very) few times in the past they have helped out. However; never ever count on it, expect it, nor ask for it. If they were to offer, it's fantastic but it's not policy nor the CM's duty. Make either arrangements on your own, perhaps ask somebody else in line to help out or skip POTC for this time and have an extra look at the Pirate Tutorial with Captain Jack. If you ask me, POTC doesn't even come close to CJ "IRL".
