>>what's a conditional comment?<<
<A href="http://www.positioniseverything.net/articles/multiIE.html>Exmplanation here - scroll down to the header "A technical discussion about CC's" - just after all of the images.
>>I guess it something do with "should the browser be I.E then use this css" <<
That's about right :)
>>thanks, i was planning on checking for errors once i'd got the layout sorted <<
If your layout is wonkied, the *first* thing you should do is validate. Validation is to be sure your markup is semantic and...well, valid. If it's not, it throws IE in ot "quirks" mode - which means IE will "guess" what you want it to do, and adjust itself accordingly. If you fix the IE errors, and *then* validate, it'll remove the page from "quirks" mose, and could throw you right back into "my sites screwed up!"
Validate first. Then fix. Saves time and headaches :)