main vm disappeared (upgrade vm198h to vm198rc2k )

My client bought this template and I have a problem with it. After i installed the hotstart1.7 version it works but i found somethig wrong with vm which is not mentioned in the template. The coupon editing is not answering! So i had to update the vm version (because its a bug with coupon editing) if i want to use this feature. But after i put the vm198rc2k into this template the vm component had disappeared. I found this problem once time before ,but suddenly solved somehow without anything changing...but not now. So my question: How can i use this template with the upgraded vm version?

ps. installed today the vm198rc2l with aio but still have the same bug.

Here is the testsite:

pilis.feketegyuri.hu/
If you choose from first top menu item(könyveink)a subcategory then the component not shown.

Here is an example :http://pilis.feketegyuri.hu/index.php/koenyveink/ezoteria
or this error comes if i choose a book.
pilis.feketegyuri.hu/index.php/koenyvein...zichologia?error=404
( * 404 The requested product does not exist.)


Thanks any help!
Manch

VM stable version is not available yet, so upgrades in this moment are not recommended. You must reinstall HotStart and please don't make updates until stable version of VM 2.0 is available.

Alternatively, you can use VirtueMart 1.1 with Joomla 1.5 which is also available in download section and as stable version.