Theme development

Im curently new to drupal and im looking to put this template i made http://ngleague.com/temp/index.html into drupal.is it possible to make it a drupal theme?

And how would i do it?

I'm theming a site starting from Garland theme.
At some point of modifications made, for some misterious reasons I recieve space as the first character of page code, which fails validation and can trigger quirks mode in IE.

I am currently using 5.5 and would like to have this theme for atleast one of my sites. I use it on Google, and have contacted the person who made it originally.

I don't theme, I don't have a clue how you all do it, I think it is great that there are people who can write code like this, and know where to put it all, I feel brain dead with just a style sheet and the css page.

anyway, if you could look to this page
http://michaelthompson.org/doc/background.html

I just want to show the vocabulary name that the node belongs to next to the terms which I know is simply print $terms I know of print $vid but that is just the vocabulary id number and I want to show the name not the id. Is this just as simple to do?

I've created a custom theme for a client's site, and this includes a blog template named page-blog.tpl.php. This looks fine when I access it at
http://www.hopechurch-madison.com/blog

but not
http://www.hopechurch-madison.com/blog/

or
http://www.hopechurch-madison.com/blog/2

Hello, i'm just wondering is it possible to code a .php file to use the Drupal theme but replace the $content area with a different thing.

Such as using the Drupal theme in the SMF Forum so it shows the blocks and theme but i don't need to include the forum in a IFrame.