Thats exactly what I did, however now I'm going to delete all the non added content (girls) and then reinstall.
Edit actually I'll just extract it to a different directory and copy all the girls over.
EDIT2: Doh, I'm a dolt. I downloaded the 1.23 thinking it was 1.29 and that the 1.29 patch was for people that had 1.23 but didn't want to dl the whole thing... now I expect it to work.