Paypal page cannot be found

[Jacinta]

I really need help urgently with this one please anyone.
I have set up paypal as the preferred payment for this site www.lokshatourssydney.com.au
When you have ordered a product and click on "check out" it goes to a page cannot be found, instead of going to paypal.http://www.lokshatourssydney.com.au/all-tours.html?page=checkout.index&redirected=1&option=com_virtuemart&Itemid=83

I am tearing my hair out and apologies if it something ridiculously silly but please can anyone help. THe client has a launch on Friday that cannot be changed so I could end up looking really bad.
I followed all the instructions and made sure that test mode was not on.
I checked the clients paypal account to make sure they had even set up the email address as I thought that might be the issue.
am not sure how to fix this issue... please can anyone help urgently.

[Jacinta]

I turned off search friendly urls and modified the link in the paypal code to reflect the real name of the page and it now works