If the code is correct - it doesn't matter how you insert it - in HTML view or insert/advanced/HTML.You will quickly learn that no program can do or be all you need. Web Design and development far extends what you can do with an html editor. You have to have knowledge about the profession as a whole - including browser compatibility and some working knowledge of HTML and not simply knowledge of the programs themselves. The programs are a tool to help you put that knowledge to work. (Yes - the simplicity is overstated in their marketing.
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Instead of absolute positioning you use Tables - another slight learning curve but a must regardless. Professional designers use tables for complex layout and that's where you need to concentrate.
Expect more from yourself and less from your html program and happier you will be. 
Marr
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Marrianne Williams
OutFront News
Stu Reilly Design
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