i can link from my home page

[eluser]Unknown[/eluser]
hi, i am new to codeigniter,

i ve a site that i can link from my home page to other page using the anchor link,

my base url is http://localhost/shop/, error 404 is always showing anything i click on a link. i dont may be is the base url or my anchor which i used as this anchor("welcome/contact us").

pls i need ur help.

your
bola