I got mad and decided to get down and dirty with PHP. Here's the way to just insert HTML into the detailed description field.
Open include/product_modify.php
Look for some code that looks like this.
Code:
if ($fulldescr == strip_tags($fulldescr))
$fulldescr = str_replace("\n", "
", $fulldescr);
change it to this
Code:
$fulldescr = str_replace("\n", "
", $fulldescr);
Now it interprets your HTML code literally. With the exception of the \n character it turns it into a
. If you want it to leave \n alone. Erase the code completely instead of changing it.
-Jeremy