If you're already using Tabbed Products Pro, a slight modification of /includes/modules/tabbed_products_pro.php might do the trick for you.
Assuming that you've disabled the Reviews tab, search in that file for this code block:
Code:
//Pre-load Reviews
if ($bReviews_Tab != false) {
$fmtRVW .= "\n" . '<div style="width:100%;">' . "\n";
$old_products_name = $products_name;
ob_start();
require(DIR_WS_LANGUAGES . $_SESSION['language'] . '/reviews.php');
require(DIR_WS_MODULES . '/pages/product_reviews/header_php.php');
require($template->get_template_dir('tpl_product_reviews_default.php', DIR_WS_TEMPLATE, $current_page_base,'templates'). '/' . 'tpl_product_reviews_default.php');
// Hack the output a bit to remove the copy of the main image that reviews normally has on it and other duplicate stuff
$products_name = $old_products_name;
$fmtRVW .= ob_get_contents();
ob_end_clean();
$fmtRVW = str_replace('id="productMainImage"', 'id="productMainImageReview" style="display:none;"', $fmtRVW);
$fmtRVW = str_replace('id="productReviewsDefaultProductImage"', 'id="productReviewsDefaultProductImage" style="display:none;"', $fmtRVW);
$fmtRVW = str_replace('class="forward buttonWrapper"', 'class="forward buttonWrapper" style="display:none;"', $fmtRVW);
$fmtRVW = str_replace('class="buttonRow"', 'class="buttonRow" style="display:none;"', $fmtRVW);
//$fmtRVW = str_replace('class="buttonRow forward"', 'class="buttonRow forward" style="display:none;"', $fmtRVW);
// don't hide read reviews button causes write reviews to float drop off tab. To fix, adding float to .tabcontent and width 100%. Lets see how it works.
$fmtRVW = str_replace('id="productReviewsDefaultHeading"', 'id="productReviewsDefaultHeading" style="display:none;"', $fmtRVW);
$fmtRVW = str_replace('id="productReviewsDefaultPrice"', 'id="productReviewsDefaultPrice" style="display:none;"', $fmtRVW);
$fmtRVW = str_replace('span class="normalprice"', 'span class="normalprice" style="display:none;"', $fmtRVW);
$fmtRVW = str_replace('span class="productSalePrice"', 'span class="productSalePrice" style="display:none;"', $fmtRVW);
$fmtRVW = str_replace('span class="productPriceDiscount"', 'span class="productPriceDiscount" style="display:none;"', $fmtRVW);
$fmtRVW .= "\n" . '</div>'. "\n";
}
If you remove the conditional around the creation of the $fmtRVW variable, you'd be able to imbed that content whereever you want within your /includes/templates/CUSTOM/templates/tpl_product_info_display.php file.