For your future wisdom, no personal URLs are allowed. You would want to post the code that you're talking about. In this case you'd quote your object elements.
<object class="mplayer" data="spider.swf" id="mplayer" tabindex="7" type="application/x-shockwave-flash"> <span>It appears you do not have the <a accesskey="8" class="icon external" href="http://www.macromedia.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash" rel="external" tabindex="9" title="Flash Plugin">Flash</a> plugin installed is required for this presentation.</span> <param name="loop" value="false" /> <param name="movie" value="spider.swf" /> </object>
Thanks Unfortunately Everything was in quotes properly. I ended up literally copying and pasting your html onto my homepage (yours was quite different and less complex, which I thought may help), but the problem is still there. Instead of my swf, there is a white space and the usual grey "Movie not loaded..." upon right click. It's probably just something to do with the swf.
Go to homestars or illwillpress and rip one of the cartoons from there (as you will no doubt be able to see they work). Use the adblock extension for Firefox and once you restart firefox (after installing) ensure (inside ablock's preferences) that obj-tag option is checked. This will let you click on a tab to block the FULL URL. Make an anchor to the full url (which you can copy and paste now thanks to adblock) and save the working flash as spider2 and adjust the page to test it out.
If the new flash file works then simply put you'll have to fix your own flash file in which case I would remind you WebmasterWorld has a fine Flash forum. ;)