InternetExplorer7: TH alignment

[Kaspatoo]

Hi,

I got problems in IE to align the content of a TH.

My question is:

How do I centeralign my content within a TH-tag on IE7?

When I do not use any css on the TH, the browser calculates its width and the content is aligned middle by default (what is what I want, centeralign the content).
But when adding style="width:45px" the cell shrinks to 45px but the content now is left-aligned.
I tried to use text-align:right the content is.. well... its like a margin-left:10px (everything happens in IE7, V8 and FF are working correctly).

Thanks for any help.