Upgrading Drupal

I just copied all the files over, and now there is a big mess

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hello,

recently, I updated my old drupal 4.5 to 5.7 and then 6.1.

Everything was perfect, until I saw the feed is not ok.

my feed address is: http://www.siberkultur.com/?q=node/feed

as you can see in the source code, there is xml codes and after that html codes!

when upgrading I uninstalled every unnecessary modules. I tried to change theme to a default theme but it doesn't worked. I installed "atom module", but it doesn't worked...

what do you think, where is the problem?

So far I haven't found much on my own about upgrading from 5.1 to 6.1, with multiple modules and a theme, so thought I'd come here. Can anyone give me some steps or anything as to how best to do this? I haven't checked to see if my modules have been updated, but other than that what would I need to do? Has enough changed that my theme wouldn't be usable? Thanks!

-Matt
www.mavrev.com

Just asking because I am having problems with a 5.3 to 5.7 upgrade.

The upgrade.text file for version 5.7 just says to disable the contributed modules when upgrading. I'm assuming that the both the "Core - Required" and "Core Optional" modules are left enabled?

Is that correct or should I disable the "Core Optional" modules?

Thanks.

I get the impression that you can't upgrade from arbitrary versions to the latest version of drupal, but rather you have to step your way up one by one. So if I have a site at 5.7, do I have to upgrade to 6.0 first and then to 6.1? Or can I go straight to 6.1? What are the rules about this?

But slightly different than the other problems already posted.

For example, I can see my content here:
http://www.columnadeaztlan.com/tecuhyotl/indigenous-movements-in-the-ame...

But not here:
http://www.columnadeaztlan.com/

How do I get my blog postings to show up on index.php