CSS/HTML HELP! SERIOUSLY!?

[bones]

I'm desperate here, with my tumblr theme, i've tried changing part of the css, but absolutely nothing's changed when you look at it. So my theme is fine except that the descriptions/captions that go with pictures and whatnot are hidden. Like if i post a picture with a caption under it, the caption wont show up on my page... so if any of you can tell me what to tweak in the css that would be lovely..
Here's part of it, not sure if its the right part to edit though...

{blockhoto}
{block:IndexPage}<a href="{Permalink}" class="permalink" title="{blockate}posted {TimeAgo}{/blockate}{block:NoteCount} with {NoteCountWithLabel}{/block:NoteCount}"><div class="permalink"></div><div class="blankp"></div></a>{/block:IndexPage}
<div class="photo">
{LinkOpenTag}
<img src="{PhotoURL-HighRes}" alt="{PhotoAlt}" width="700px" border="0px">
{LinkCloseTag}
{block:IndexPage}<small>
{block:RebloggedFrom}
<a href="{ReblogParentURL}">{ReblogParentName}</a>
‹
<a href="{ReblogRootURL}">{ReblogRootName}</a>
{/block:RebloggedFrom}</small>
{/block:IndexPage}
{blockermalinkPage}
{block:Caption}
{Caption}
{/block:Caption}
{/blockermalinkPage}
</div>{/blockhoto}