I am so sorry...I know these words will be said over and over and almost lose meaning, but I have been in your situation and "sucks" doesn't come close to whats been lost.
I have only just got home and seen some details but to attempt to put a positive on a very negative is that the company has brought in administrators, not filed for insolvency. For those who dont understand the difference, insolvency/bankruptcy is the final end when a company believe there is no salvaging it and they close doors whereas administrators are people employed to assess the business and whether or not they can trade the business back on track.
I hope Silverjet can be salvaged but to those who are now left wondering what to do - my heart goes out to you all!
Abby x