Upgrading Drupal

to upgrade 5.1 to 5.2 raise a big problem -> the dates of the events are 1970 no 2007 all events are now,
How to fix, please?
sites/all/modules
- date
- event

I upgraded to 5.2 and all is well except this message.
The directory files is not writable
Any help here?

Hi, in the 5.1 release I added this little code to run cron each hour because I cannot let the provider run the script as explained in some help page.

so I added this in index.php after drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);

I upgraded from version 4.7.6 to 4.7.7 and received a successful update notice (no failures, 100% on progress bar). However, when browsing to either site or site admin pages, I receive this error:

Fatal error: Call to undefined function block_list() in C:\Documents and Settings\John\Desktop\localhost\epnewX\includes\theme.inc on line 936

Can anyone assist me in resolving this issue?

Thank you.

I am receiving the following error when attempting to upgrade from verson 4.7.6 to version 4.7.7:

* user warning: Can't create table '.\epnew\cache_filter.frm' (errno: 121) query: CREATE TABLE cache_filter ( cid varchar(255) NOT NULL default '', data longblob, expire int NOT NULL default '0', created int NOT NULL default '0', headers text, PRIMARY KEY (cid), INDEX expire (expire) ) /*!40100 DEFAULT CHARACTER SET UTF8 */ in C:\Documents and Settings\John\Desktop\localhost\drupalX\includes\database.mysql.inc on line 172.
* user warning: Can't create table '.\epnew\cache_menu.frm' (errno: 121) query: CREATE TABLE cache_menu ( cid varchar(255) NOT NULL default '', data longblob, expire int NOT NULL default '0', created int NOT NULL default '0', headers text, PRIMARY KEY (cid), INDEX expire (expire) ) /*!40100 DEFAULT CHARACTER SET UTF8 */ in C:\Documents and Settings\John\Desktop\localhost\drupalX\includes\database.mysql.inc on line 172.

I recently upgraded the version of drupal from 5.1 to 5.2 on my site http://www.vshiksha.com

Everything went absolutely smooth and upgrade was shown successful. But now, I am experiencing a problem. on any of my user account pages, I am getting an error as follows:

warning: Invalid argument supplied for foreach() in /path/to/public_html/modules/user/user.module on line 1516.

Please someone help me!

Regards
Satya Prakash Shukla