Messed with page IDs, can't fix, help?

[eluser]Unknown[/eluser]
Hey all...

Basically I accidentally edited one of my pages' ID within CodeIgniter because I was making a clumsy attempt to have CI recall my pages as (for example) www.your-site.com/index.php/products/shoes/shoes.htm instead of the default www.your-site.com/index.php/products/shoes/123. (The ID was a number and i tried to change it to a word...) Now none of my page IDs can be recalled and the site is down, I'm fairly new to PHP so hopefully this is an easy fix... any help is greatly appreciated, thanks!