Problems with the categories

[NovaDragon]

Good morning all,
I have been struggling with the categories on the VM2x Site.
I have set up the categories correctly and link a menu to the categories.
My problem is it isnt viewing the categorie when i click the wanted categorie from the menu
it generates a link like this http://www.astrum-it.co.za/index.php/products.html?page=shop.browse&virtuemart_category_id=11
and when i got to this page nothing is on the page that is one
Question two is
I dont want that search function that show when you are on a categorie and i just want that item to show under that categorie i don't want any other product to show.

Please help
Thanks in advance