Module ANY HTML allows you to add iframes, javascript, youtube embed code and any HTML code in joomla module.
Requirement:
Joomla 1.5.X
Here’s how to use :
1. Download the Module ANY HTML here.
2. Go to Extensions –> Module Manager

3. Click New Button and chose module ANY HTML
4. Enable the module and Add any html tags (iframes [...]

Ways in fixing PNG transparency in IE 6:
1. Use of the IE PNG fix created by this site http://www.twinhelix.com/css/iepngfix/. This script use css declaration, supports <IMG SRC=””> image elements and background PNG images.

To enable you to place Javascript, PHP and CSS right in to your content! Not only in your articles, but also in sections, categories, modules, components, META tags, etc. Click the link below to visit the Joomla plugins.