Hello, I'm sorry too. As another programmer I sympathise how fustrating user problems can be, often it is user error, and sometimes very simple problems take very much unanticipated work to fix, which holds up other projects and so can be sad to disover.
So far I tested the "write comments" link on the home page with IE7, Safari 3.2.1, Firefox 3.0.7, Konqueror 4.2.1, Opera 9.6.4, Avant 11.7, and Google Chrome 1.0.154. Of these, Chrome somewhat rendered the entire width of the link clickable, but not in all areas over the text. On all others, the cursor is the wrong type over the word "write", that is, the word "write" in the link is not clickable. On some of them, on the left end of the link it is a hand cursor, but not a pointing finger cursor which on my Windows configuration indicates a clickable link.
Really I would prefer to make the anchor for "write text" a block element containing the 'write comment' text with the width of the text column, so the whole column width would enable clicking to activate the link; and even perhaps a background graphic that would change on hover (like the extended menu implementation on the page's left).
On the second question, here is a screenshot of the text I wish to increase the size. it is the text in this instance "comments from NI library." I'd like to align the other heading cell content nicely, but make the title stand out a little more. Looking in the code it has a .posttitle class, but adding a declaration to the css file for the class did not change the appearance on the page. There is some very clever coding for Ajax in your implementation, so it's not clear to me exactly where to attach a property change for this.