I started to use this plugin for my websites. But I found a few errors:
When there is no /uploads directory the script gives an error that this directory is not 'w'ritable. I fixed it by uploading a random pic. Perhaps check the existance of the map first?
Another BIG problem is that when changing URLs in the WP-POSTS dataset you also replace the GUID URLS which I thought should NEVER be replaced? Quoting the big guys : It is critical that you do NOT change the contents of this field.
You can find the discussion about that here :
http://codex.wordpress.org/Changing_The_Site_URL at the bottom.
I don't know if this really is an issue for new WP installations, but I think it is for the older, more established websites who have a lot of rssfeed subscribers. When you change these guid urls they will receive all those posts again as if it was for the first time...
Is there a way to skip these guid urls from changing?