Moving Expression Engine 1.6.7 to New server:

1. Export Database From old server
2. Download all the files from old hosting
3. Create new database and import the DB exported in step 1
4. Upload all the files to new server
5. Change configuration settings in /system/config.php file. Here system may vary based folder name.
6. Look for the DB information set in extensions and Modules
7. Change the full paths from Old to New
8. Change the following file permissions
    1. .htaccess - 777
    2. /system/templates/ - 777 (Recursively for sub folders and files)
    3. /system/config.php - 666
9. Now you can able to login to admin section in new server
10. Change the full paths in Admin settings to reflect New server DOCUMENT_ROOT
11. Remove ALL cache
12. You are done!!!!

Note: Dont change the full paths directly in database it causes the issue which doesn't load the system preferences. Hence you can't access either site or admin section

More info for latest versions can be found at http://expressionengine.com/user_guide/installation/moving.html