Get used to it then. It takes the Bukkit staff a few hours once they start working to port the code to the new server version. Just have patience and watch the front page.
Steps to get your server working 1) Go to http://forums.bukkit.org/forums/bukkit-news.2/ 2) Read the news posts 3) Click on the post about 1.5* 4) Update Server *Note: If there are no news posts about 1.5 on bukkit.org there are no working versions of bukkit for 1.5