Typo3 quick help needed

Hello All, I am looking for a experience Typo3 developer for quick help in 3 issues. 1. I have developed a website in Typo3. When I have developed on localhost it was working good but after installing to server I found URL issues. For example: I am having website [login to view URL] when I want to go to particular page I click from the menu and redirected to that page where I found error The requested URL was not found on this server. But I have actual page up on [login to view URL] Only apply if you are sure you can 100% solve the point 1 which is most important and priority then 2,3. I want help to solve this issue first. Only experience Typo3 developer who can describe that he can do this. 2. I want to divide footer columns which are now 3 into 4 columns. 3. Wants to install powermail extension. I can provide more details to selected developer. Please Developers only no company. Thanks!