title: Creating a basic pay now button for sagepay gateway
body: <p>I have a client who has signed up for a sagepay account. His current website runs off wordpress 3.0 and currently doesn't have any sort of ecommerce functionality.</p>
  
  <p>He's needing a button that lets users submit a deposit of £300 through sagepay (this amount never changes).
  (Usually, I would suggest using paypal for something like this, but apparently due to the travel nature of his business, paypal won't let my client have a pro account)</p>
  
  <p>I've looked at the method described in a similar thread on here back in March (<a href="https://stackoverflow.com/questions/9540321/how-do-i-make-a-sagepay-buynow-button">How Do I Make a SagePay BuyNow Button?</a>), but I'm not really sure how to implement this within a page on wordpress, not hugely knowledgeable on php bar basic template editing, so I got totally lost at the $PAYMENT_CRYPT part.</p>
  
  <p>If anyone could provide the steps I need to take to implement a basic button that submits the same amount each time, and then collects all the card details/customer details once it's sent them to sagepay gateway, it would be hugely appreciated!</p>