Yeah I had a terrible time getting it to work when I decided to return to WW, and was frustrated as I'd been paying for it for nearly two years!
I finally got it to load in IE after about 3 hours. I think I used an old login link from one of my original sign-up emails. Really annoying!!
Anyway, I love the online tools. I have lots of WW books and could probably do the program without subscribing to the online program, but I find many of the tracking features really handy, especially the fact that you automatically see the points increase (often surprising) for doubling portions of stuff!
As I'm only doing this online, tracking there and posting here are my main accountability options.