You will want to build a small custom module to house your forms api code.
This requires nothing more than creating a .module file and a .info file.
For the .info file, you could just copy one from a module that you already have installed, rename it, and edit it. For the .module file, you don't need anything in it but your form_alter code
Best,
William
Allow me to ask a "dummy" question.. just gone through the form API documentation and some tutorials. Where do I put my faorm api code? on the themes template.php?
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