Hi Andrew,
Glad you've found the videos useful. - Regarding the image, logo, image header - do you require to be able to change the images by logging in? Or is this just an image as part of the graphic that will be displayed in the skin?
You can add multiple tokens to a page, but you need to number them ie: [CONTENTPANE], [CONTENTPANE:1] etc. - so in your xml file, for the token, you can set individual settings for each of those tokens.
Regarding 2 menus, this should be possible following the above rule, but I would actually use a different method.
The solpart menu is not very search engine friendly because it surrounds the links in Javascript. - What I would recommend therefore is that you use the solpart as your horizontal menu and then use the
House Menu as the vertical menu - if you've used CSS before for creating menus, you will find this easy to configure. - The HouseMenu is search engine friendly.
In fact you could use the House menu for both the horizontal and vertical menus.
You can see an example of a pure CSS skin I have created here with the House Menu.
http://skins.dnncreative.com/TheSkinDetails/tabid/64/Default.aspx
Javascript can be incorporated into skins, the above example uses Javascript to pull in a IE hacks file and a print.css file dependant on the browser. - All you have to do is add the Javascript into your skin. - Have a look at the source code of the skin and you can see the Javascript at the end of the source.
Hope this helps you get started, thanks,