Possibly up a creek without a paddle?
We might need the services of Barmaid (AB's tame civil law barrister) for a definitive answer here but I'm fairly certain that I've seen court judgements given against 'Bloggs & Co (in administration)' or 'Acme Ltd (in receivership)'. The existence of such judgements would seem to suggest that the court case can continue (in order that the administrator or receiver can determine whether your name should be added to the list of creditors). Regrettably though, winning your case won't help if there are no funds to pay you.
If the administrator believes that the business can be saved creditors will be asked whether they'll accept a payment of so much in the pound as full and final settlement of the debts. If the creditors vote against this proposal, or the administrator doesn't believe that the business can be saved, the business will go into receivership, with creditors being paid as much (or, more likely, as little) as is available through the disposal of the company's assets.
Chris