'Undefined index' following virtuemart product search

Hi,

Got the plugin working nicely, but when I do a search, the results page returns the following messasges:

Notice: Undefined index: virtuemart_category_id in [web root]/plugins/route66/virtuemart/rules/category.php on line 19

Notice: Undefined index: virtuemart_category_id in [web root]/plugins/route66/virtuemart/rules/category.php on line 45

Notice: Undefined index: virtuemart_category_id in [web root]/plugins/route66/virtuemart/rules/category.php on line 70

Please advise.
Cheers.

Perfect, thanks.

I've spotted another issue (sorry) - the link to the second (and subsequent) pages of search results redirects to the homepage.
http://azeeda.com/?keyword=bread&start=24 (auto generated link for search result pages) doesn't work.

http://azeeda.com/?keyword=bread&start=24&option=com_virtuemart&view=category&virtuemart_category_id=0 (querystring values added manually determined by the url for the first page of search results) does work.

Do you want me to open a new ticket?

I've created a new one in case this one is of use to anybody searching.