Installation of older ubuntu

[bryan hamilton]

I would like to start off by saying that "I love ubuntu" but i'm not a 
fan of the new user interface (ubuntu 12.04).  I see that most other OS 
dev's seem to be going in a similar route in gui design. anyway I've 
recently upgraded to 12.04 (fresh install) and would like to downgrade

my question is,

if i was to 'downgrade' to say any older and now unsupported 'LT' will i 
be able to download applications and such forever-ever-ness ? meaning 
are the repo's staying online/accessible via apt?  and if so, can i get 
the repo links  ?


I had planned on downgrading to 10.04.


I hoped i was able to explain that well enough.


Thanks in advance,

bryan