Post installation

I successfully created one user from the user admin page. Another one I created gave me this error (and didn't create the user record, even though it did send an email to my email address (this the the 9th time I've gotten this error - each time the entry number increased). What do I do to fix this?:

Drupal allows users to register, login, logout, maintain user profiles, etc. No participant can use his own name to post content until he signs up for a user account.

After moving the site from an apache2 server on ubuntu
I can no longer login. The login screen goes no where, no errors, no nothing.

However I can get in by requesting a new password by email, and getting a one-off login. Which is better than nothing but next to useless. I have looked through posts on this and tried a few things, but would appreciate any comments.

Server:
Apache/2.0.52 (NETWARE) mod_perl/1.99_12 Perl/v5.8.4 PHP/5.0.5 mod_jk/1.2.6a mysql 4.1.9

Do0ds,

I have a problem with HTTP Error 403.

I'm using Drupal 4.7.0 with Organic Groups 4.7.0. I'm just experimenting and I have disabled the OG module from administer >> modules.
After that the HTTP Error 403 - Forbidden (You are not authorized to view this page) message appears.
I can't even go to the login page!
I'm using WinXP and IE 6.

Please, HELP! How can I turn back on the OG module? Are the settings for enabling modules stored in the database or somewhere in the drupal's file structure?

10x in advance, Guys!

i see the t() a lot. for e.g $block[0]["info"] = t('On This Date');what does t() do -is it a drupal function or php

sk

i'm using the latest image.module and everytime i upload a JPG i get an error log of

"move_uploaded_file(): Moved: '/var/tmp/phpv65Tjm' to 'temp/tmp_M7vK6F' in /home/recipesh/public_html/beta/includes/file.inc on line 239.
Severity error
Hostname 69.106.249.186
"

can someone help?

This one's interesting, can't figure it out.
So I run a Drupal site on GoDaddy (which I *know* is not a great host for Drupal) with clean URLs enabled and a subdomain (drupal.mysite.com). The site gets Server 500 errors whenever I try to click on any content; the front page (drupal.mysite.com) works fine.