1. Since http://www.jailbreakme.com is inaccessible then why not using the alternative url here: http://jailbreakme.com/index.html, you will be brought to the site!
2. In case the first alternative is not working, then use the .ca extension here: http//www.jailbreakme.ca, the mirror site of the .com
Please tell if the above work for you or do you have any other way to get there? Please inform us!