Fix Problems in my magento Store

I need this job done in 24 hours 1 - the first problem would be the application area, when I search for a request by the customer's name, I have to just type a name, if I type the full name of the error and shows no request [login to view URL] 2- I would like to have a product to sell screening, for example BIKINI 1 product when he open a page that shows all the customers who have bought this product [login to view URL] 3- We changed the system some time, and in the old system can not bring the registration of customers, we have many clients who attempt to access the account in the new system with a username and password but are not registered, needed if a client tried to access with a email that there is no open a pop up with a message that it needs to register (if you can do that let you send a message pop up)