1) Disable Clean URL while installing

[0] Fix | Delete

2) Default Timezone should be ZERO

[1] Fix | Delete

3) Delete all watchdog INSERTS And also change its AUTO INCREMENT =1 ;

[2] Fix | Delete

4) We check the latest Drupal 6 version in Drupal 7 upgrade.php so when there is an update in Drupal 6 change the version in the __requirements() in Drupal 7 and in the info.xml of Drupal 7 <min_require> tag.

[3] Fix | Delete

5) Dont change 'datestamp' to timestamp in DB. It is the launch date

[4] Fix | Delete

6) We do not copy .htaccess from /sites/default/files/.htaccess because Drupal creates it

[5] Fix | Delete