Hi Cybamatrix,
We've conducted some testing on this issue and have found that if a user is logged into eBay Italy, they will be directed to the listing on the eBay.it site.
However, if the user is logged into eBay.com, they will be directed to the eBay.com site.
This way, the Italian speakers should be directed to eBay.it and the English speakers should be directed to eBay.com.
-Mike