content sidebar is at the bottom of the page

Hi,

i’ve created a page with a right sidebar. The sidebar contains 2 widgets. Some color sections of this page have fullwidth.
This seems to work only the content of the sidebar (the widgets) are at the bottom of the sidebar instead of at the top.

I’ve been searching for a solution but can’t find anything else then move the <aside> code after the <main> code of the first content part. in firebug this seems to work, but I can’t find the code in the theme files.
Actually I hope there’s a better solution.

you can see the webpage here: http://95.211.20.63/~allworkx/?page_id=205

thanks