Atahualpa Disaster with WP Update

I have been using the Atahualpa theme for six years and have never had a single problem. I love it – easy to customize, simple to use. My story is the same as others that I have read in the forums – update to the new WordPress and it all goes to hell. First I had no site at all, no way to get in, no login page, etc. Today I have content but no header (which is where my paid adverts are) and widgets are all over the place, even ones I’ve never used.

I run a local community blog in Canada and am willing to pay for you to fix this to update the theme to work with WP. I have a very good computer guy working on this since last night and even he is baffled, but still trying. He is making a little bit of headway, but not much.

Can I please get some feedback on this? The adverts on my site (which have now all disappeared) give me quite a bit of extra money every month.

Thanks for your help in advance.