Dear disinformatique_in1,
This is with regards to your query on transfering your existing listings to your shop.
Once you open an eBay shop all your active listings will automatically appear in your eBay shop. You do not have to list them again. However you require a feedback score of 5 positive ratings to open an eBay shop.
You can visit the following for details on how to open an eBay shop.
http://pages.ebay.in/sellercentral/advanced-selling-promotebusiness-ebayshops.html#Sellers
Regards,
Preeti
Regards,
Preeti