If you formed the company in October 2005 the company's accounting period will automically be 31 October 2006. Accounts will be due to be filed 10 months later ie by 31 Auguust 2007. You can extend the first accounting date up to 18 months from incorporation so the first period could be extended up to Mar 2007, delaying the date the accounts need to be filed to Jan 08. However to do this the Companies Registy will need to be notified by the end of this month so you haven't much time.