Drupal 6.x

Hi to all!
I have a problem with upgrade D6 to D7.
What I did:
1) Ugrade D6 to latest version;
2) Disable all modules (exept core modules)
3) Delete all files, exept my own files and "sites" folder;
4) Download latest D7 version, start update.php;
Than I have some warnings and errors.
The first, and the main, I can't use admin page. Drupal says: "you have no administer elements". I can only enable/disable modules on "admin/modules" and give permissions to them.
Also, on update.php drupal says:

Hi,

I'm trying to get my head around a Views setting, I can't find how to exclude older than two years old content from Views. I know it has to be somewhere in the Filter section. I would expect this to work, but it doesn't...

Content: Date (field_publication_date) - From date <= now + 2 year

I'm doing something wrong, can someone please help me out?

Thanks a lot!

I have a Drupal 6.x based website that was created 4 years ago. At that time, the web host was offering MySQL databases with a 100MB maximum size. Since then, the plan now offers 1GB limits. However, they host MySQL on separate servers, and the server that hosts this website's database will not support them increasing the database size after the fact.

Hello,

Total Drupal novice here that took over administration of 2 websites running Drupal 6.26. I transferred them from being hosted on one hosting service to my existing host account on another provider (Jumpline to Hostmonster if it matters).

www.sunairtampa.com
www.floridaindoorairquality.com

This what I have done:

1. Get Jcarousel module and install:

http://ftp.drupal.org/files/projects/jcarousel-7.x-2.7.zip

2. Got Jcarousel Pluggin zipped files

https://github.com/jsor/jcarousel/archive/0.3.3.zip

3. Created sites/all/libraries/jquery.jcarousel folder

4. Moved the content of the downloaded folder into the sites/all/libraries/jquery.jcarousel folder

I downloaded the Zen theme and FTP'ed it to sites/all/themes.

It appeared in my list of themes, and I clicked on the Default setting. I got this error:
Fatal error: Call to undefined function render() in /home2/wvwworg/public_html/scholaclasses/forum/sites/all/themes/zen/templates/block.tpl.php on line 12

and now I can't get back to my Administration Themes page to change it back to Garland.

I was hoping it would be a simple matter to change the theme to a mobile-friendly theme, but apparently I got in over my head very quickly.

Can anyone help?