[xwiki-users] XE 1.6.1 issues with importing xar's

I am running xwiki XE on windows 2003 on mysql 5.0. Until this weekend, we had been on 1.1.2, so I thought it was time to upgrade. I upgraded a version at a time (don't know if this was required, but I saw some versions had DB updates). Everything went fine through 1.4. When I deployed the 1.5 war, I noticed that the admin app was not there and needed to be imported. I was able to upload the xar file, but when I clicked on it to import it, I get the message "No documents found in the selected archive" I also tried this with the default xar and had the same issue.Thinking this was an software issue, I upgraded to 1.6.1 and had the same problem. At this point I created a 2nd database in MySQL and tried that. Still no luck. I can't import the admin or default xar files.Any ideas?