Copy Propeitary Categories to New Theme

I’m currently having an issue where a client is trying to implement a new design on her site however the old site had built in functionality which is different than the new theme. Namely the way you created albums to be displayed – it’s a bit different.

I tried exporting the data from the old WordPress site and importing it into the new setup but I kept getting invalid portfolio type errors or alerts saying items existed already.

The original site is and it uses a theme from

The new temporary site is on and the theme is

Any assistance is greatly appreciated.