Upgrading Drupal

Hi, I have a problem. I am running a website on Drupal 5.3 I tried upgrading to 5.7, following the instructions in upgrade.txt, but it didn't work out. The theme style disappeared and I could not access any of the content, though the administration page would load.

Hello, I currently have a drupal 5.x site up and running with uber cart installed and working correctly. I noticed ubercart is only only for 5.x and not 6.x. My site relies on ubercart so, should I bother to upgrade and lose ubercart for the sake of security?

-Thanks,
Rich

Well, I've got Drupal 5.7 up and running on my site.
I was reading through the handbook (getting-started_2.pdf) to get started when I ran into a bit of trouble...
I'm trying to upload images.

page 31 has this to say...

Enable content types for uploads
Create content
Attach file - uncheck List file, copy file path under the box once it's uploaded.

I prolly should have just left it alone since I just went live with the site... but I didn't.

Can someone tell me what went wrong... or more importantly, how to fix it?

http://tvpinc.com

I just upgraded my Drupal from 5.3 to 5.7 following the upgrade instructions in the Handbook. I did the upgrade by installing 5.7 in a fresh directory and trying to follow the instructions for copying files from the 5.3 directory. After upgrading, I see the following errors:

I want to upgrade my website from version 5.7 to 6.2, but I use the Gmap module for some informations.

How can I resolve this? I've search this module in drupal 6 but nothing.

Thanks