preg_replace help

[AV1611]

This statement came from lot of help online here...
[code]
$new_str = preg_replace('|\b([a-z\']+)\b|i', "<a href='../concordance.php?WORD=$1' target='reference'>$1</a>", $string);
[/code]

what it does is picks every work from a sting and turns the string into a clickable link.

Now, I need to do something simular:

I need to change every occurance of this string:
[code]
baptistrevival.com:8081/bible
[/code]
to this string:
[code]
www.baptistrevival.com
[/code]

Here is a real sample string:

[code]
$string=
'And the evening ^{<a href='http://baptistrevival.com:8081/bible/strong.php?data=H6153'>[H6153] </a>} and the morning
^{<a href='http://baptistrevival.com:8081/bible/strong.php?data=H1242'>[H1242] </a>} were ^{<a href='http://baptistrevival.com:8081/bible/strong.php?data=H1961'>[H1961]</a>}  the fourth ^{<a href='http://baptistrevival.com:8081/bible/strong.php?data=H7243'>[H7243]</a>}  day. ^{<a href='http://baptistrevival.com:8081/bible/strong.php?data=H3117'>[H3117]</a>} ';
[/code]

[AV1611]

N/M:
[code]
$kill = "baptistrevival.com:8081/bible";
$add = "www.baptistrevival.com";
$string=str_replace($kill, $add, $string);
[/code]