Hi John, and welcome to the forum!
First, you have reached a forum of primarily shoppers discussing the triumphs and vicissitudes of mystery shopping. We do not have shops to assign. What we do have is a list of legitimate companies for you to register with. This is at the bottom of each page of the forum and is a link called 'Official List of Mystery Shopping Companies'. For each of the companies on the list there is a link to the company's website to register with them and for many there is a list of links to conversation threads on the forum about working for/with the company--gripes and kudos.
It is up to you to get registered, accept work, read instructions, perform shops, enter reports in a timely fashion and respond to editors. Only you can do this.
Edited to add: If I were you I would use the blue edit button in the lower right hand corner of your post to remove any/all personal contact information so that you are not innundated by spammers and scammers. Word of warning--don't send your personal information to any 'company' by email as it is likely a scam; standard pay for beginner jobs is single digit to low double digits so any job offering more than that solicited through email is likely a scam, especially if you haven't been working for the company for a while; companies do not send you money up front for shops, nor do they require you to wire transfer money away.
I would direct you over to the New Mystery Shopper section of the forum for more information about how this works, getting started and getting your business set up and going because this is, after all, Independent Contractor work and you will be operating your own small business.
Edited 1 time(s). Last edit at 06/13/2012 06:05PM by Flash.