I don’t see why not. It’s a fairly simple plugin. But generally, packing lots of javascript into a lightbox can be problematic – at least in my experience. Make sure your lightbox plugin is solid.

Some advice. Try to steer clear of iframes if you’re trying to pack complicated functionality into a lightbox. You’ll have fewer bugs if you can load the content from a hidden inline div.

Not exactly sure what you’re asking. You can specify which images the plugin will be applied to by using a CSS selector. So if you want to apply the hover effect to every img element on the entire page, you’d use:

$(‘img’).hover_caption();

But if you’re looking to apply the plugin to a smaller set of images, you’ll need to first add a class to each of those images (e.g. class=”use_hover”). Then you’ll need to adjust the plugin’s css selector accordingly. For example:

$(‘img.use_hover’).hover_caption();

That would then call the plugin on all images with a class of ‘use_hover’.

Hope that clears up the confusion. If not, lemme know.