Have a problem in making payment online using Internet Explorer 7.?

I was booking for the use of a sports facility via Internet Explorer 7. This message kept popping up.

"Content was blocked because it was not signed by a valid security certificate. For more information, see "Certificate Errors" in Internet Explorer Help."

I tried going to Intenet tools and add in their website but still not able to pay online. I called their IT personnel but they too could not help. Can someone help me please?

I did not have this problem previously when using Internet Explorer 6.

TY

LIK

Have a problem in making payment online using Internet Explorer 7.?microsoft windows

UN install IE7 the computer will go back to IE6 make your payment then reinstall IE7. I pay all my bills on line and I have IE7 I never had problem.

Have a problem in making payment online using Internet Explorer 7.?windows media player 10 internet explorer

never like IE7, heard its buggy..even my company doesn't support if we use iE7

best that you use back IE 6