IMVU is a social-gaming site that is blocked by many schools to prevent students from playing games during school hours. The website is blocked by system administrators through the network settings. You can use a Web proxy server to get to imvu.com without it being blocked. Proxy server sites are completely free to use and are capable of bypassing security and networking restrictions.
Navigate to a public proxy server site, such as hidedx.info, passedproxy.info or bearhidden.info.
Type "imvu.com" into the address bar within the proxy server site.