Problem with -Designed my site Offline-Where to go next?

I have designed my site offline in html-kit becauce i was told that it was better.
Now comes the time im nearly ready to upload my first site and now i find i'm confused
about changing paths - especially for images - which are all relative path.
This is what they look like now.
{ "file:///C:/Users/alan/Documents/blahblah-dot-com/images/blah.jpg" }

My question is how do i change to absolute www dot and still be able to see the images.?
Do i change all files to absolute just before upload ?
Do i put the www before the site name .?

As you can plainly see i am a newbie but i do not know how to change the whole structure of the site.

Hope someone can help.
Kind regards alan...

Change all your paths to absolutes from the root of your public folder.

Example:
If your were storing your images under:
http://example.org/images

Thanks for the quick reply SpooF !

Do I have to do it this way for all files and images ?
Could you point me to a good tutorial about this subject ?

Thanks in advance...

Al..

I have tried to do call an image in this way and it does not show.
Could you please explain this image code as my images are in a separate folder
al..