Image links in Opera

[pantrikki]

Hi.

I have a problem: image links in Opera (in "hover" state) appear with the style I chose for the links, but I don't want images to do that, only text. This happens only in Opera, I checked it out in all other browsers

I'm a novice, and I don't know what I'm doing wrong:

Test page: http://www.soydechivas.com.mx/temps/ghtest.htm