Drupal 6.x

I've been trying to install Drupal, but have never successfully installed one..
Every time I try installing, I get this error message.

We were unable to lock a test table on your MySQL database server. We tried locking a table with the command LOCK TABLES drupal_install_test WRITE and MySQL reported the following error: Access denied for user: 'db_username'@localhost' to database 'db_name'.

I currently use mailhandler on my site to allow family to post pictures via email. I frequently find mailhandler/cron have got stuck because they submit several large files in one go and this causes my max execution time to be exceeded.

I am experimenting with a patch for mailhandler to make the retrieval process use the batch execution system.

I have this working for manually requested retrievals, and have been able to retrieve in excess of 30 messages without a timeout.

I'm building a Drupal 6.0 site and I wanted to try adding in an ad between the 2nd and 3rd posts, etc on the front page but couldn't find a ready-made Drupal snippet to use.

Wordpress does this - it's a little bitof code you add to their "loop" that runs like this:

Hi folks,

I'm planning a multilanguage corporate brochure + blog website (Drupal 6) for one of my clients. Website frontend will be available in eight languages though backend only in English. The reason for that desision is to avoid the trouble of translating the whole Drupal 6.0 in all eight languages. Besides that, only a single person will have access to backend.
BTW the website will not make use of blog module, just pages, stories, search and contact;

Hello, I'm trying to get my navigation working and I added two items: Home and Forum, however Forum goes to the top and Home goes to the bottom, how would I change the positions of these navigation items?