I no longer care to have anything to do with PayPal. Long story. I paid someone to create the donate block. Another long story. Anyways, I would like to edit this block. What I am wanting to do is delete PayPal buttons and put another paysite button instead. How do I do this?

Thanks in advance,
BunnyNuke

Did they make a blok file or just use HTML?

Go to your Nuke/Admin/Blocks. Click on the block and then look at whether it is a block file or HTML.
If it is a block file, you will need to get the blocks/block-filename.php file off of your server via FTP and edit it in a PHP editor.
Otherwise, if it is a standard HTML block, copy the html to an editor and edit it then copy/paste the changed HTML back.