Unity 2.6 download

i have downloaded the unity 3.1 verison but i dont understand it but i understand the 2.6 veriason so can you please make me able to download unity 2.6??????

as there will be no further support/development, as I've understood it, I think you need to invest some time in getting to know the new 3.x interface.

Perhaps you could have a look here to learn how to use it.