when should i register pls help

namaste ! i cleared my ipcc both grps in this november 2010 and joined articles on 25th february 2011 after result on 9th feb 2011, what is the period of my articles ending date and when should i attemp for final, the date pls and when should i register, the date pls.when should the preparation begin for six subjects other than tax. thanku very much in advance for replying me.