I solved somehow the problem of displaying a wide table on a page with a fixed width. By condition it was necessary to always show the left column (with row headers). Maybe I was looking badly, but the solution I found did not work, because there are many limitations. The result is this .
Principle of work: we make a duplicate of the table, we impose it over the original one. The original content is hidden, the duplicate has a column with headers. Checked in IE8, FF3, O10 (can be doped for IE6 and 7).