When I say slightly improved, let me emphasize the word slightly... ...

The code that displays related entities in an IFRAME has been around for quite a while.  For the sake of not reinventing the wheel, here it is:  http://robscrm.blogspot.com/2007/11/showing-related-entities-in-iframe.html.

When you render the IFRAME it doesn't look as professional as a normal CRM view.  The borders have a lot of white-space and the IFRAME just looks out of place.  A while back Microsoft sent me some code that does related entities for three entities at a time in a tabbed IFRAME.  It is essentially the same things as the basic related entities IFRAME times 3 entities.  Good stuff!

So, when i looked at the IFRAME I noticed that the formatting problems didn't exist.  After one of our business analysts asked if I could clean up the styling on the related entity IFRAME, I decided to leverage the code.

Before Fix
 

After Fix

So, here is the code.  Enjoy.
-Andrew

  function GetFrameSource(tabSet) {
      if (crmForm.ObjectId != null) {

          var oId = crmForm.ObjectId;
          var oType = crmForm.ObjectTypeCode;
          var security = crmFormSubmit.crmFormSubmitSecurity.value;

          return "areas.aspx?oId=" + oId + "&oType=" + oType + "&security=" + security + "&tabSet=" + tabSet;
      }

      else {
          return "about:blank";
      }
  }

  // Waits for the content window of the IFrame to be ready
  function FixStylingInFrameSource(iframeID) {
      // Check the content window's ready state
      if (document.getElementById(iframeID).contentWindow.document.readyState
!= "complete") {
          // Re-run this function in 10 ticks
          window.setTimeout(function() { FixStylingInFrameSource(iframeID) }, 10);
      }
      // Content window is ready
      else {
          // Change the background color
          document.getElementById(iframeID).contentWindow.document.body.style.backgroundColor = "#eef0f6";
          // Remove the left border
          document.getElementById(iframeID).contentWindow.document.body.all(0).style.borderLeftStyle = "none";
          // Remove padding
          document.getElementById(iframeID).contentWindow.document.body.all(0).all(0).all(0).all(0).style.padding = "0px";

          // Make the cell the full width of the IFRAME
         document.getElementById(iframeID).contentWindow.document.body.all(0).style.width = "102%"

          // Show the IFrame
          document.getElementById(iframeID).style.display = "block";
      }
  }

if(crmForm.FormType != 1)
{
  crmForm.all.IFRAME_contacts.src = GetFrameSource("areaContacts");
  FixStylingInFrameSource('IFRAME_contacts');
}