This may be useful:http://www.aoaforums.com/forum/showthread.php?t=22160
I don't know whether their CPU support tables are correct. Oftentimes such information reflects the newest CPUs available at the time.
The website's list may reflect CPUs the bios recognises with the latest bios installed. What the tech support told you may be from the original list when the motherboard shipped.
I couldn't see a EP-8KTA3+Pro on Epox's website, so I had to use Google - it turns out the EP-8KTA3+Pro is only listed on the USA site.
, so long as it has the latest bios flashed, it'd support any Athlon XP CPU for 133/266MHz front side bus.
You can download the latest bios from here:http://www.epox.com/USA/article.asp?ID=1434