SEF Version 2.1.4 & Virtuemart 1.1.4

Using your Virtuemart extension you have for download on your site.
www.sakic.net/content/scripting_files/vm_sefa_ext.zip

Everything works fine when I set Virtuemart as a component to ignore. When I don't ignore the component, some products are not redirected correctly.

For example the link:
www.charisma-art.com/store/originals/roast_leg_of_lamb/

will be redirected to the page:
www.charisma-art.com/store/index.php?key...virtuemart&Itemid=53

SEF Advance debug information

Array
(
    [keyword] =>
    [category_id] =>
    [limitstart] =>
    [page] => shop.browse
    [option] => com_virtuemart
    [Itemid] => 53
)
/index.php?option=com_virtuemart&Itemid=53&keyword=&category_id=&limitstart=&page=shop.browse&option=com_virtuemart&Itemid=53
Parsed in: 0.784 seconds, 12.85 MB


If I turn off SEF, the link to the same product shows:
www.charisma-art.com/index.php?page=shop...virtuemart&Itemid=53

SEF Advance debug information

Array
(
    [page] => shop.product_details
    [flypage] => ilvm_fly_showroom_mall.tpl
    [product_id] => 871
    [category_id] => 1
    [option] => com_virtuemart
    [Itemid] => 53
)
/index.php?page=shop.product_details&flypage=ilvm_fly_showroom_mall.tpl&product_id=871&category_id=1&option=com_virtuemart&Itemid=53
Parsed in: 0.371 seconds, 12.24 MB



It is just not consistent. The following products in the same category are just fine:

www.charisma-art.com/store/originals/super_trooper/
www.charisma-art.com/store/originals/the_great_pretender/
www.charisma-art.com/store/originals/little_bundle_of_boy/


The following don't work:
www.charisma-art.com/store/originals/enlightened/
www.charisma-art.com/store/originals/prancing_in_the_moonlight/

What is the pattern here? Any idea? Any idea what is going on here?

I know I sent you the login but I do not see you logging in. Do you have an idea how I can get Virtuemart to work with SEF Advance?

I will have a look on it soon. Sorry for delay.