It sounds like I should stick with .dwt's for the mean time. I'm assuming these can only be used one at a time? i.e. you create a .dwt and place all your static content which will be common to a given set of pages within your web, then create a managed region or regions that you then create .html files with or from (i.e. merge the .dwt to create .html files)... and that you cannot merge multiple .dwt files together to then create a single .html file?
I guess what I'm asking is there anyway in Expression Web to create say a separate file for a banner for the top section of a website, then a separate navigation file (links) for the left side, and then a footer file - basically all separate *.* files - and then put it all together with some dynamic content in the center right much like you would with PHP when you fit multiple .html fragments together to create a website i.e. all the separate files are brought together when the client requests these in their Internet Browser...
Thanks
Jus