Database joins, views, etc.

[eluser]mistress_shiira[/eluser]
hi guys!
1. do u have any links to resources which i can read on regarding
$this->uri->segment()?

2. actually,im recoding some of my earlier projects to CI and i admit im kinda fuzzy yet on how CI works and all.when i have multiple pages like index,main,results etc. where every page has a different set of data used,would it mean creating different set of models and controller for every page?
this is just to clarify though.still experimenting on stuff here.
thanks a lot!