I wanted to upgrade from 1.2 to 1.5. I came here for information and backed up my database using the instructions here. I also looked at the way in which dreamhost suggested that you upgrade. It is different than the steps outlined here. They say to set up a separate folder to install the upgrade and make sure everything is working there before copying files to the location of the your current blog. This seemed to make sense so I did the install in a separate directory with the same database. I'm having one little problem. When I try to get into the wpadmin on the 1.5 version it logs me into my current blog, the 1.2, in the other directory.
Any helpful hints?
Saint Eyebeat, aka Nancy