I'm guessing it's because either you have no links to similar sites, no keywords in your
<meta name="keywords" content="Company Name, Southend on Sea">
statement. For example in my music site I have these search terms:
<META NAME="keywords" CONTENT="Square, Bear, Dance, Trance, Fruityloops, Ejay, Run away, Worswick, mp3, Jupiter rose, Cami, Yana kay, Square bear, Home city, Home city records, samples, games, baz, u sure do, babylove">
Many people say that these keywords are not important but I've always found them useful.
Also, I don't know much about Vistaprint but I'm guessing that the searcg engines are seeing Vistaprint instead of your site? Just a guess on that one though.