IP changed, HELP!

Hey, group. Boy, am I stuck!

I am hosting ltw_calendar on one server and its database exists on another server. I set up everything correctly and all seemd to be going well, until earlier this week.

The host of the site onwhich the calendar is posted, changed the IP address of the site. Of course, they didn't inform me of this, I had to figure it out from the error messages.

Today, I received the correct IP address of the site on which the calendar is posted and plugged it into my database server, so it would allow the calendar access to it's pages.

Here's the problem: I now know that the site is talking to the database, but I have a new error message:

"Error: Connection to MySQL server 64.62.164.98 failed.
Error: Connection to MySQL server 64.62.164.98 failed.

Warning: mysql_query(): supplied argument is not a valid MySQL-Link resource in /usr/webroot/web1/a005kyod/docs/events/private/ltw_classes.php on line 1247
Error: A problem was encountered while executing this query.
$query

--------------------------------------------------------------------------------
SELECT * from ltw_categoryv4
Error: Fatal db Error."

Now, I know they are talking to each other, because I placed a graphic at the top of the ltwcalendar file, and it has shown up. (does this make sense?) but I'm at a loss at what else could have went wrong. It was working before the IP changed. And now it is not working.

Any help would be appreciated.

I would say that either the database listed no longer exists on that server, or the daemon isnt running.