[css-d] content simetimes disappear in IE

hi everbody i have a problem with my design im developing a style for phpbb sometimes the content goes behind the background color of #container div see my design here http://www.persia-cms.com/test/ please play with your browser's window size the last part of the page "Non-phpBB specific" has

[css-d] problem in floating a in tag

hello everybody im developing a SEOed templated for phpBB phpBB templates are table based templates and they are not semantic. im trying to design a clean, fast and semantic template for phpbb im not professional in CSS and i encounter with some problems 1- all forums are in tag and i have tag