This is my website: http://www.hahmed.com/blog/plogger/
as you can see, the plogger part of the site is a little bit wider than the background image of my wordpress theme. How can i just narrow the plogger page down a little bit so itll fit within the white space?
You already integrated plogger with wordpress! Cool!
Probably the wordpress css and the plogger css are conflicting. The part of the page that plogger is in, is wrapped inside it's own <div> called "<div id="wrapper">". If you change this div in the gallery.css into something like width:90%; or a fixed width:600px; this will probably help. You have to experiment a little with the values. If the wrapper-div doesn't center, you can add 'margin:0 auto;' to the css description of that div.
Now you have: #inner_wrapper { /* padding: 10px;*/ width: 100%; }
If this doesn't work, I noticed you still have the <div class="post"> in that page. Perhaps this isn't necessary and you can remove that div (including of course it's closing div </div> somewhere at the bottom of the page.