I have upgraded my WordPress installation several times before and this is the first time I have run into any problems of great significance that I haven't been able to figure out on my own.
My site is published at http://joylag.com/
I've just upgraded from 2.3.3 to 2.5.1 and the problems I'm having are both HUGE and VERY ALARMING. The two most important issues that need to be addressed are as follows.
WHERE THE HELL ARE MY POSTS?
They are nowhere to be found... front-end or back-end. The general public cannot see them, and I cannot see them from within the wp-admin Manage Posts screens.
MY SIDEBAR HAS BEEN WIPED!
I do not recall any previous WP upgrade having any significant effect on my sidebar, but this upgrade has wiped everything clean. My sidebar was made up mostly of custom TEXT and PHP widgets, and now they are nowhere to be found. I had hoped that I would only have to drag them back and rearrange them in the order they were in before, but it seems like this isn't an option.
I'll be honest with you...I am very nearly in tears over this.
I would really appreciate any help that you can offer.