New to asp.net

My employer is moving and they need me to fix the addresses on there website. It is writen in asp.net using microsoft development environment.vb. I have had luck with finding the info I need to change in the .aspx file however I do not know what to do from here. Do you need to compile it or what. i saved the changes but the website stil shows the old info. Any help or links would be great. Thanks.