Firefox

When I sought to search postings using Firefox, I could not find the window for entering the search text. I had no problem with Internet Explorer. Given IE's propensities for problems and Firefox's increased market share, you might want to address this incompatibility, if indeed I did it right.

At the top right, at the beginning of each thread, there is a button Search his Thread.
At the top right, at the TOP of each forum-page, is a button Search which is for Search Forums.

Firefox shows it perfectly (as does any other browser for that matter...)