Hi,
firstly there are quite a few code changes needed in templates/YOUR_TEMPLATE/html/com_virtuemart/category/default.php so I will give you some general pointers as to how .
But this is a complex file so I hope you have some technical knowledge - if not this is well outside our template support so you will need to contact us for paid help to do this.
first in the Plug-in Manager: Flexible VM2 Template plugin switch off the quick look etc
to remove the link from the image for each of the image displays you will need to remove the html link to the fly page and the quicklink a ref
example
on the list view of the default template
the code would look like this
<div class="FWBrowseListContainerOut productdetails-view">
<div class="FlexibleListBrowseV1Picture width25 floatleft">
<?php #echo JHTML::link($product->link, $product->images[0]->displayMediaThumb('class="browseProductImage" border="0" title="'.$product->product_name.'" ',false,'')); ?>
<?php echo $product->images[0]->displayMediaThumb('class="browseProductImage" border="0" title="'.$product->product_name.'" ',false,''); ?>
<!-- START quickLook Code -->
<!--<div class="FlexibleProductHoverShadow" on-click="document.location.href = '<?PHP echo JRoute::_ ( 'index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=' . $product->virtuemart_product_id . '&virtuemart_category_id=' . $product->virtuemart_category_id );?>'">-->
<?php if ($params->get('category_quicklook',1)) { ?>
<div class="FlexibleProductHoverShadowButtons">
<a class="FlexibleProductHoverShadowQUICK" title="<?php echo $product->product_name; ?>" rel="facebox" rev="iframe|550|900" href="<?PHP echo JRoute::_ ( 'index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=' . $product->virtuemart_product_id . '&tmpl=component&flexiblelayout=quicklook&virtuemart_category_id=' . $product->virtuemart_category_id);?>"></a>
</div>
<?php } ?>
<!-- </div> -->
<!-- FINISH quickLook Code -->
then remove the product details link
but as I say - this is outside our support - but this will work if you do it on all views and what ever template variation your using
cheers