I have categories instead of tags because before there was no way of managing tags unless you went to each tag on each post one by one editing or deleting what you wanted. With categories we can just manage it all from the dashboard. And I rather have had tags because then visitors can stay in your blog instead of going into the global tag page wandering off into someone else's blog. But now since the upgrade I noticed I have 5 tags but I don't use tags but they say they are all 0 in the manage area of the dashboard.
Can tags be managed now like categories are? But most importantly, can all the categories I have, and I have many, be somehow easily exported and moved to tags?