I found very good tool that you can give support to view youe CSS3 in Internet Explorer 6-8
selectivizr is a JavaScript utility that emulates CSS3 pseudo-classes and attribute selectors in Internet Explorer 6-8. Simply include the script in your pages and selectivizr will do the rest. It is enriching the IE’s Selector engine in smart way. It supports 19 pseudo-classes, 2 pseudo-elements and every attribute selector to older versions of IE
you do not need to have javascript knowledge. Selectivizr does everything automatically and you do not need to modify your style sheet and you can just start CSS3. It is awesome 
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