« Reply #10 on: Sunday 23 May 10 17:00 BST (UK) »
no need for an upgrade, I have the basic sub and I can get them.
Using the 1851 for Wales, click on 'show advanced search options' and the boxes appear as long as you're using 'old search'.
I'm trying to see what happens if you're on 'new search', but the option doesn't seem to be on my screen just now, although it sometimes jumps to the new one mid-search.

Cornwall: Allen, Bevan, Bosisto, Carnpezzack, Donithorn, Huddy, James, Retallack, Russell, Vincent, Yeoman
Cards: Thomas (Llanbadarn Fawr)
Glam: Bowler, Cram, Galloway, James, Thomas, Watkins
Lincs: Coupland, Cram
Mon: Cram, Gwyn, John, Philpot, Smart, Watkins
Pembs: Edwards (St. Dogmael's)
Yorks: Airey, Bowler, Elliott, Hare, Hewitt, Kellett, Kemp, Stephenson, Tebb