how to arrange the product categories

[experd2002]

hii guys

I just use this virtual mart and I love it. I have two problems currently

1. I made a menu -- link with manufacture categories  in order to give manufacture profile (so my customer can get the their profile)
in that there are a link to manufacture products .. the problem is in the top there are product categories and not directly to the products of my manufactures. (as information I have many manufacture).  I don't want to unpublish instead to manage the product categories. anyone can help??

the second problems. anyone know what extension (open source) that can allow my partner sellers upload, manage their products??

please advice me

thank you

[jenkinhill]

http://forum.virtuemart.net/index.php?topic=79799