Theme development

I try to develop a theme for 4.5.2. Basically I made a HTML design and copied the same tags as bluemarine in it, in the same order. It seems to work OK, except for the homepage. One article is promoted there, but it appears where the breadcrumb is located, not where normally nodes and other information appears. This forces it to have the same (incorrect) style as the breadcrumb. Why would the front page text appear in the breadcrumb? What am I doing wrong?

Ok, I was trying to create my theme, what I did was make an html page, and then transfer it over to XTMPL, but when I tried to load it I got a ton of Xtemplate Errors (See for yourself at http://g-razor.com) I did some searching of drupal.org and found it had to do with the begin and end tags, so I made sure I had everyone that was in the bluemarine template, and it still doesnt work :(.

Im new at theme development.. I want to put a "login | register" n "logout" part to the right top of my page.. what do i have to do ?

Painfully new to this. Apologies.
I am trying to configure my Drupal site and I have the (common?) problem with over-large fonts throughout. I would like to reduce all the fonts - content, headers, tabs, etc. - across the platform. I have fussed with settings in my theme file, as well as style.css and drupal.css. No luck. Is there any way to make a global change?
I understand that users are asked to search for an answer before posting. I have been looking into the wee hours. My scalp is barren.
Any guidance would be appreciated.

I am a pretty experienced Drupal developer but I know nothing about themes, I dealt only with modules and core things before. Now I need to create a complex front page.

Here are some ingredients: an HTML file from my client with a lot of boxes (much like msn.com) and a Drupal module which produces the content to be put into those boxes. So let's say I have vars $box1, $box2, $box3 etc to be put into those boxes. I must use xtemplate. What kind of functions shall I write so that I can write {box1} into the HTML file thus making it a template?

Hello,

I would like to remove the User menu from my website pages. My site is a corporate site without user management capabilities, only 'back-end' users will be able to access the site in order to create content.

I have managed to remove the menu from the left hand side...but it gets very troublesome to get to the administration pages (I have to bookmark links for login, create content...).

Is there a "nicer" solution than this?