mysql_result problems after upgrade

I have this custom site / script I had purchased from someone... but since upgrading to php5... seems something broke. Some of the pages are working fine with the mySQL database... but others are not. Here's the error I am getting:

I get 13 of those errors (1@ per use of mysql_result)... The code this is coming from:

<?php
$TheURL = $_SERVER['REQUEST_URI'];
$var_array = explode("/",$TheURL);
$GotURL = $var_array[1];

$ArticleID = substr($GotURL, 7);
settype($ArticleID, "integer");

$articlesql = mysql_query ("SELECT ID, Category, Author, Email, Title, ArticleBody, ArticleBlurb, DateSub, DateAct, URL, Active FROM articles WHERE ID = $ArticleID AND Active = 1");
$CheckFound = mysql_num_rows($articlesql);
If ($CheckFound == 0)
{
	//404 redirect
	//header("Location: /index.php");
}
$ArtID = mysql_result($articlesql, 0, "ID");
$ArtCategory = mysql_result($articlesql, 0, "Category");
$ArtAuthor = mysql_result($articlesql, 0, "Author");
$ArtTitle = mysql_result($articlesql, 0, "Title");
$ArtBody = mysql_result($articlesql, 0, "ArticleBody");
$ArtBlurb = mysql_result($articlesql, 0, "ArticleBlurb");
$ArtDateSub = mysql_result($articlesql, 0, "DateSub");
$ArtDateAct = mysql_result($articlesql, 0, "DateAct");
$ArtURL = mysql_result($articlesql, 0, "URL");
$ArtActive = mysql_result($articlesql, 0, "Active");

	$CategoryCount = 1;
//Get the first category
$categorysql = mysql_query ("SELECT ID, Name, Belongs FROM category WHERE ID = $ArtCategory");
Print mysql_error();
//Get First Records and put into the array
$CategoryID[$CategoryCount] = mysql_result($categorysql, 0, "ID");
$CategoryName[$CategoryCount] = mysql_result($categorysql, 0, "Name");
$CategoryBelongs[$CategoryCount] = mysql_result($categorysql, 0,"Belongs");
$CatBelongs = $CategoryBelongs[$CategoryCount];
//Print "CatID = $CatID, $CategoryID[$CategoryCount]";
$TheEnd = false;

//Get we have a categories
If($CatBelongs != 0)
{
//Put all the category struture in the array
While (!$TheEnd)
{
	$CategoryCount++;
	$categorysql = mysql_query ("SELECT ID, Name, Belongs FROM category WHERE ID = $CatBelongs");
	$CategoryID[$CategoryCount] = mysql_result($categorysql, 0, "ID");
	$CategoryName[$CategoryCount] = mysql_result($categorysql, 0, "Name");
	$CategoryBelongs[$CategoryCount] = mysql_result($categorysql, 0, "Belongs");
	$CatBelongs = $CategoryBelongs[$CategoryCount];
	If($CatBelongs == 0)
	{
		$TheEnd = true;
	}
	If($CategoryCount > 10)
	{
		$TheEnd = true;
	}
	//Print $CategoryName[$CategoryCount] . "&nbsp;>>&nbsp;";
}
}
	
	$MainKeyword = "$ArtTitle";
	$MainCategory = $CategoryName[1];

?>

PHP:

Is there a way I can fix this within the above code?

thanks,

 

you have

$ArtID = mysql_result($articlesql, 0, "ID");

Code (markup):

are you sure that your mysql table has a field with 0 as the ID? because if its auto_increment they start at 1. At least mine do.

This may not be the problem, but im just wondering what you are recalling, im kind of a newbie to mysql, and dont know all the errors etc. but that just looks kinda fishy to me someone care to back me up or contradict me, go right ahead, just stating my opinion

 

Thanks, but I have no clue about this mySQL stuff... but I do know, by using phpMyAdmin, that if I go to export anything... it always fills in a "0" where it says, "starting at record #"