Payment Gateway Integration (simple) - Place our Logo on Payment Page

We need someone to integrate a payment gateway in our website.

Our website is wordpress based.

2 tasks needed to be done:

1. We do not require a full eCommerce functionality including shopping cart etc. We just want a payment page, where our clients come and fill in the details and make a one time payment specifying their own amount and reference. The process should be finished on the same page without leaving our website.

check the documentation for integration here: http://www.cardsave.net/dev-downloads

2. Secondly, we are using pay by link service where we send a link to our clients for payment and they click the link that takes them to cardsave payment page. We need to do minor changes in that page including replacing cardsave logo with our company logo. see attached info file that could help.

We need this to be done today some time.