Apparently I am more of a computer idiot than I thought, because I checked this thread a few days after I wrote the message and thought that nobody had replied! Oops! Thanks for all your kind words.
Well, I did finally find a part-time job, but it is where my husband works, so it has not really lead to my meeting any new people or feeling more independent. Still, at least I get out of the house. And I am finally getting the hang of driving on the left, so I don't feel quite as trapped.
I guess I'm feeling a bit less homesick at the moment, but instead I am depressed by the long UK winter! I'm from Florida. I spend the last 4 years in Binghamton, NY-- so the weather here is an improvement (I'll take rain over snow any day!), but I'm still yearning for summer. Normally I would go visit my parents in Ft. Lauderdale around this time of year and get in a dose of sunshine.

I would be very happy to meet up in Chelmsford if you guys still want to.