Easy Fancy Box and WordPress 3.1.3 – image with href inside the articles

Hi,
I’m very new here but I’m trying to build my own templeate
but I have a (maybe simple) question for you

Before WP 3.1.3 I use to put my images inside the articles an then on the front end fancybox does the magic.
whatever image I click inside the articles fancybox automatically pop up

but now with WP 3.1.3 when I write a new article with an image, and then I click on the image, WD brings me on a new page, with only a div with that image and the article and only now I can click the image and then fancybox appears.
But that’s not what I want!

What I can do to make it work directly on the home page?

that’s the html article I’ve got before WP 3.1.3

<a href="http://indirizzo/nometema/wp-conte… class="alignnone size-full wp-image-52" title="see" src="http://indirizzo/nometema/wp-conten… alt="nomeimmagine" width="320" height="260" /></a>And then the article...

and that the html of the article with WP 3.1.3

<a rel="attachment wp-att-79" href="http://indirizzo/nometema/?attachm… class="alignnone size-full wp-image-79" title="nomeimmagine" src="http://indirizzo/nometema/wp-conten… alt="" width="320" height="260" /></a>And then the article...

I know the problem is that “a rel=”
but what can I do to use the fancybox directly on the page where I see the article with the image (the homepage for example)?

Thank you in advance
(and sorry for my english)