The content of a craigslist post can change while the post is active (for example, if the post is edited).

To view the current version of a live post it may be necessary to refresh or reload your browser. 

To refresh an ad, navigate to the live ad on craigslist, and then follow the instructions below for your web browser:

Firefox: Select View —> Reload. Or, click the curved reload arrow on the very end of the web address bar on the right side.
Chrome: Select View —> Reload This Page. Or, click the curved reload arrow that is to the left side of the web address bar.
Safari: Select View —> Reload Page. Or, click the curved reload arrow on the very end of the web address bar on the right side.

Internet Explorer:

Select View —> Refresh. Or, for older versions of IE: click the curved reload arrow to the left of the web address bar. Or, for newer versions of IE: click the curved reload arrow on the very end of the web address bar on the right side.
AOL: Right-click the browser tab and select "Reload Tab," or click the curved reload arrow to the left of the web address bar.