Membership SignUp process issues.

I was supposed to soft launch my clients site this week but I am still having a nightmare of a time getting the Membership SignUp process to work properly with my theme.

When you go to the sign-up page something in the CSS makes the "Select a Subscription" text and subscription text almost white so they are not visible unless you click anywhere on the screen.

Then when I click SIGN UP on one of my subscriptions it tells me to Please check the details of your subscription below and click on the relevant button to complete the subscription but there is no information to double check.

When I click on SUBSCRIBE I get the same "please check..." error message.

This plugin was the main reason I signed up for WPMU and I am a bit stressed out now as each request response takes a day to get a reply, even if it's the simplest question.

Please help.