swf file for banner ad

Dear Support,
I am having troubles trying to place the correct code for a flash banner ad in the custom code box. Can you help. the site is ctenginners.org
Home page seems ok, but if you click anyother page
www.ctengineers.org/index.php/acecct-membership/membership-info
it keeps trying to load but nothing. I am displaying on all pages.
Here is my code
<OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
codebase=" download.macromedia.com/pub/shockwave/ca....cab#version=5,0,0,0 "
WIDTH=135 HEIGHT=135>
<PARAM NAME=movie VALUE="C&C_XLI_Ad_2.swf"> <PARAM NAME=quality VALUE=high> <PARAM NAME=bgcolor VALUE=#FFFFFF> <EMBED src=" www.ctengineers.org/C&C_XLI_Ad_2.swf " quality=high bgcolor=#FFFFFF WIDTH=135 HEIGHT=135 TYPE="application/x-shockwave-flash" PLUGINSPAGE=" www.macromedia.com/shockwave/download/in...rsion=ShockwaveFlash ">
</OBJECT>

Another thing, notice that index.php is in the url - how to remove this. this looks pretty silly.
www.ctengineers.org/index.php/acecct-membership/membership-info

Thanks Rebecca

try removing extra dot (after .swf) at the end of:

... src=" www.ctengineers.org/C&C_XLI_Ad_2.swf ." ...


also that was not question for this forum.