If you're comfortable with mysql databases, you could go into the wordpress database and change all the links that way.

I don't think there is an good and easy solution.Generally I don't think you should do it with plugins, it my cause you problems.

Are you talking about the site in your signature?

If you currently have affiliate links to different products and they all currently appear in lots of different locations in your site (e.g. sidebars and within different articles) then you're probably going to have to find and change them each manually.

For future reference, though, you could create a new folder for each of your affiliate products and place a PHP redirect in each one. Instead of using your affiliate link each time you would, instead, use the new folder as your link - e.g. www.yoursite.com/new-folder

The 'new-folder' would contain the PHP redirect to your affiliate link and then you would only need to change it once within the redirect code to change all of your affiliate links wherever they may be.

This article goes into more detail:

Affiliate Marketers: Using 301 Redirects to Save Money | WealthyDragon

Cheers,

Martin.

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