Layout menu is no more there since VS2005
In Visual Studio 2010 on Design View (The bottom "Design" button should be enabled) go to the main upper menu and choose:
Tools - Options - CSS Styling and Check the option
"Change position to absolute for controls added using Toolbox,paste or drag and drop"
However I don't recommend this because in my experience is not browser compatible sometimes so you should permanently check how your page looks in different browsers as you go forward in your layout.
You can try to create your tables manually (with the menu you just found) instead and use their css properties to align the text/images inside each row and cell as you wish. This can help to walk you through the process:
http://social.msdn.microsoft.com/Forums/is/csharpgeneral/thread/7db5a810-e9e0-42eb-8ebc-a4c28036effc
http://forums.asp.net/t/1599099.aspx/1
http://technet.microsoft.com/en-us/subscriptions/downloads/dyxa0hhe.aspx
Hope this helps.