I have found an acceptable solution :
Locate wp-customer-reviews.php
edit it with a text editor, find the lines
<blockquote class="description"><p>' . $review->review_text . '</p></blockquote>
you should find them in 2 places ( one for product review and one for busines review )
remove class="description"
also there is a little bug fix to do :
<blockquote><p>' . stripslashes($review->review_text) . '</p></blockquote>
you need to add stripslaches else you'll see \' when people post comments with quotes.
tadaaa now comments show on inner pages too !!
so it appeared that it has something to do with the css file that has blockquote.description ( i'm no expert in jquery and css so i gave up and just got rid of the style which is good enough for my project )
Enjoy the fix !
Patrice
http://www.audiobank.fm your source of royalty free music ;)