Amasty Improved Navigation Incompatibility with exiting parfinder Extension

Magento 1.9.1
sites saispower.es and bullmoto.com both on same tree data. Bullmoto.com is in progress to start sales. Sasipower.es we use for our professional clients not for final user..
I decided install improved to get better features to find easily products once a finder is selected.

Issue is half solved missing code to assign URL to attributes on partfinder. Now improved is disabled. once a finder is selected improved is shown on side bar with categories. But when click on any categoriy or attribute on side bar redirects to main search not to selected product filtered by finder

lets discuse about
Best regards
Jason Hoath