Transaction Results – Empty page

Hi,

I have just made a test transaction on my site and it all seemed to work fine up until I got to the Transaction Results page.

The Transaction page give me a summary of my purchase (after paying through Paypal) with a ‘Make Payment’ button at the end. On pressing this button I was then presented with a empty page of my site with just the header ‘Transaction Results’.
I would like this page to say something more along the lines of ‘A confirmation email will be sent to you… you should receive your order in a certain amount of days etc.’ How do I set this up?

I have checked my test purchase and it has gone through and I have received a confirmation email but I would like this message to be told to the customer on completing their transaction within the Ifenkili site.

Also on a slightly seperate note the confirmation email I received about my purchase was from WordPress, how do i make this say it’s from Ifenkili instead?

Please help.
Many thanks,
Chika.