Hi,
Okay I am upgrading a clients blog, and I am wondering what the best course of action is. Now its 2.1 and I am upgrading to 2.5.1 and made a subfolder 'test' and installed a separate blog in 2.5.1 to make the layout and stuff. I have the posts and images up to a certain date but I need to move everything to the root folder and have just the updated 2.5.1 running with all the previous posts. There are two separate databases too. Thats the trick, because of the different structure in the databases for the two versions and the incredibly flawed wordpress-to-wordpress import/export option, I had to manually change the posts before hand and I don't really have time for that as I need it live by tomorrow. I am toying with a few ideas now that I just finished backing up the site and databases:
-Import the posts and deal with any bad links and possible missing info because of the wrong post_ids (trying to get it to start at 3213 but lots of steps). Downside is there are tons of images that don't need to be downloaded/moved, they just need to be correctly inserted into the database.
-Attempt to upgrade via the wordpress upgrade.php and see if that works.
-Manually having to insert everything in the database and just overwriting the wordpress files
The problem I am facing most is the connection between the posts and their attached images (there are thousands of posts and an average of like two or three images per post). Also the tags and category transfer is tricky. Any thoughts?