Does anyone know what Opera supports/doesn't?

[Karira]

My site is adapted perfectly for FireFox, but I'm trying out other free browsers to see how they work to make it accessible to more people. I downloaded Opera (which I love, by the way) but I discovered that my codes as they are do not allow my transparent tables to appear on Opera. Please have a look. If anyone knows how to make my transparency work in Opera, your contribution is greatly appreciated. Oh and another small thing, if anyone knows why the underlines on my menu text are black instead of the font color I assigned... that would be great too.
Thank you!

[DT2]

Umm,

I know if you use excessive image slices (image-ready/photoshop), it doesn't display them properly. If your worried about display issues learn css/html if you don't already know it yet. Tutorials below.
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