On Tue, 29 Mar 2011 23:41:12 +0100, Frank Booth Snr
wrote:

On one plant, 1 of these shoots is a few inches away from the original stem and therefore is probably a
sucker. Should I retain this?

yes, that's next years fruit

It's the only sign of life showing on this
plant. The remaining two plants still look lifeless with no signs of
shoots so far.

give them a couple of more weeks, but it was a harsh winter for
anything newly planted

Will these stems soon die or will they root and form
new plants hopefully?

Keep your fingers crossed, but unlikely.