In the blog or chat script, you can point their database to the one store all forum's tables and change their table that hold account information to the forum one (so that account info is from one...

To do this you need to design the database with one command table that handle all information required for diferent services. For example you will have a table_user to keep username, password, email,...

Are you using shared server?? If yes, then it may be other users who shared the same server having high traffic that affect your site's performance (unless the server has load balancing feature...

You have to indicate/select the database before the query is placed
$dbhost = "hostname";
$dbuser = "dbuser";
$dbpass = "dbpwd";
$database = "dbname";

$sqlConn = mysql_connect($dbhost,...

If you are using windows, you can use the IIS to run your scripts.
You can also upload it to some free servers to try with. Save your time and you can always find solution from web hosting's FAQs...

I think you've placed you script in the wrong order. You have to place the 'update' before the form being display. For example:

if ($_POST("action")=="true")
{
// do something to update your...

I have been using asp and Access to create a forum (see www.basket2go.net/forum.asp). Scripts to add data to DB is listed below. Hope it may help:

' Get user name
ForumUser =...

I have been "reading" MySQL manual yesterday...

1. -
2. MySQL allow 4000 (or 400??) simultaneous connections. After you close the database, it will take 3-4 minutes before the connection can be...