I need help ASAP

[imperialis]

Long story short I have been having issues with my auspost mod so my host people were going to have a look at it

I don't know what they have done but they have messed with my site when I go to checkout now nothing happens and they have lost my sideboxes on the right hand side when I'm in my cart grrr
but the sidboxes aren't turned off can anyone help me?
I have customers who are unable to checkout so I'm loosing money by the minute

[kobra]

Didn't you or your host back this up before making these changes?