(2nd Part):
In situation number 2, someone (possibly that management consultant?) has to be a licensed administrator who has been appointed by a court to run the company's affairs. If so, the administrator has to arrange a creditors' meeting within 10 weeks of the company going into administration. The basic objective is to keep the company afloat by getting the creditors to accept only partial payment of debts. So, if this situation applies here, you might get the offer of receiving some, but not all, of your money. (This procedure has been used by a number of profesional football clubs, e.g. Leeds Utd FC and Ipswich Town FC, to save them from bankruptcy).
In situation number 3, someone (usually an accountant from a firm of insolvency practitioners - not, please note, a management consultant) will have been apponted to assess the comany's position. In theory, the company might be able to continue trading but, in practice the company is effectively 'dead' and unsecured creditors are almost certain to receive nothing.
So, as I've said, the first thing to do is to find out which of these 3 situations is the current one. If they're still trading, No.3 is unlikely. If No.2 applies you need to find out when and where the creditors' meeting will be held. If No.1 is appropriate you need to ask yourself whether you're prepared to risk paying the court fees to obtain an order against the firm.
Whatever action you decide upon, the sad truth is that you can't 'get blood out of a stone'. What you can do, however, is to make life very unpleasant for the directors of the company. I'm sure that the local newspaper for the area where this company is based would be very interested to know about your problems with this company. (You might just find that they suddenly find the funds to pay you!).
Chris