[infected]

Well done, it seems to be working now. I had to remove the clear:both in .poststuff. Then i had to realign some paddings (for positioning the dashed borders between each post). Now it looks okay in Firefox 3, Opera 9 and IE8. I hope it looks the same in IE7… I can´t test it.

Thanks for your help tomdebruin! Now i can go on with some other customization to suits it to my wp-theme.