How to implement the Amazon Standard Search Box

Good day all,

Using
Drupal 6.9 and 6.10
Zen Classic 6.x-1.0
Amazon 6.x-1.0-beta5

Been trying unsuccessfully to implement (as a new block) the Amazon Standard Search Box and Search Box With Dropdown. What exactly am I missing here? Should be simple enough. Added the iframe and script tags to the Full HTML filter.

Here is the widget code:

Standard Search Box
<iframe src="http://rcm.amazon.com/e/cm?t=charegchastc-20&o=1&p=20&l=qs1&f=ifr" width="120" height="90" frameborder="0" scrolling="no"></iframe>

Search Box With Dropdown
<iframe src="http://rcm.amazon.com/e/cm?t=charegchastc-20&o=1&p=27&l=qs1&f=ifr" width="180" height="150" frameborder="0" scrolling="no"></iframe>

Any help?

Cheers,

Varenne