This Act is fully in force.   A couple of key points arising for our corporate clients:

In terms of filing obligations, the most significant change was the reduction in filing deadlines for annual accounts.  Private companies have 9 not 10 months after the end of their reporting year.

There have been changes relating to directors and secretaries.  A private company does not need a secretary, but if they do appoint one, the details of that secretary must continue to be filed.  

Please see also the new Financial Thresholds April 2008 and Trading Disclosures.