Adding GPS widgets to blog entries

I uploaded GPS tracks to a free online visualization service and they offer an HTML code to insert a map widget into travel blog entries, but the code needs modification according to travellerspoint.
How do I modify the following code:

<a href="http://www.everytrail.com/view_trip.php?trip_id=25750">Olympia (Greece) to Kashgar (China) by bike at EveryTrail</a><iframe src="http://www.everytrail.com/iframe2.php?trip_id=25750&width=415&height=300" marginheight=0 marginwidth=0 frameborder=0 scrolling=no width=415 height=300></iframe>Map created by EveryTrail:<a href="http://www.everytrail.com">GPS Geotagging</a>

Joachim

Unfortunately the blogs don't allow any entry of HTML code (it'd be really hard to guarantee security if HTML input was allowed), and there is no way to create an iframe to an external website using the blog code. (I'd personally be very afraid of security implications of allowing frames to other sites, too.)

So, unfortunately, what you want can not be done at travellerspoint at this time.