Here is my shot at answering your questions as simply as possible:
1) No. Not at all.
2) No. Tables have been used since before I started in 1995. They (their coding) have no direct effect on search engines.
3) NO!!! FrontPage adds more irrelevant coding than any other editor on the market. Dreamweaver is hands down the industry standard application staying closer to strict code than any other app. (aside from hand coding the site yourself.)
4) The more coding you have, the less relevance your content holds when you go down the page. That is why most designers use includes for JavaScript’s and cascading style sheets; so all that code resides in outside files and not within your page coding. Keep in mind that most all font tags are depreciated, meaning they are being replaced by style sheet code. I strongly suggest you start looking at linked style sheets and get away from font tags all together.
A great resource for style sheets is here:
http://csszengarden.com/
5) Research the spidering process and basic site optimization. You will find that not any one given app will give you the perfect site. A spider friendly site is all based on placement of the relevant content. A site that I have used for an overall review is SEO-Doctor; found here:
http://www.instantposition.com/seo_doctor.cfm
Another good site is here:
http://www.sitereportcard.com/
I have used both with great success in my targeted search terms.
6) Not at all. That is the whole point of these forums; to ask questions and seek answers.
And on a personal note, not all Marketing directors know enough about SEO to go cutting code. Make your point that your job is to deal with the code and let him/her deal with marketing. Dreamweaver does not incorporate enough coding in their templates to do any damage to page ranking.
I hope this helps.
Let me/us know if you have any more questions.
Best of luck.