Nemmie,
Your still a ways out from your vacation, so it's unlikely that Poly concierge would be contacting you this early. I think it's actually closer to the 3 or 4 month mark. Most reservations for dining, tours, etc. can't be made until the 90 day window, even for concierge. If you'd like help with booking something that has a broader window, like Hoop Dee Doo review, or Cirque tickets, then you can definitely touch base with them and get the ball rolling. Their primary communication is e-mail, which is probably great for you being in England. When you get to a point where you know which ADR's you'll need, or any other requests, you can simply e-mail Poly IPO and they'll put them in as a pending item. Once the appropriate window opens up for reservations, your pending items will be changed over to confirmations. The IPO staff can also assist you with any purchases you'd like to make prior to arrival. I usually have a few gifts waiting in our room for the kids. If you're celebrating anything special, they can help you with those plans. Here's their e-mail address to get you started,
wdw.polynesian.island.planning.office@disney.com . Feel free to get in touch with them at any time. I haven't stayed at the Poly, but I believe they also send you a nice questionnaire to help in the planning process.
Oh and if you want to look up DIS'er SeaSpray, she had a wonderful stay at the Poly concierge and has done up a nice trip report with lots of pictures. There is also a DIS'er named TikiMan who is very knowledgable about that resort. He has a great website with tons of information and photos. Actually, here's a thread that might interest you
http://www.disboards.com/showthread.php?t=937495 .