publishing the .htaccess file

Hello again,

I'm having an issue that I think is related to the .htaccess file in the shirts4mike directory I'm trying to publish to.

I'm including a few links as well as the content of my current .htaccess file. You will notice that manually typing in "shirts.php" to the end of the URL(**see next) gets you to the page properly, but

**the navigation link to shirts and the result of clicking a "view (shirt) details" link take you to a 404 error. This, I suspect, is due to some modifications that must be made to the .htaccess file.

here is the URL to the main "index.php" in the "shirts4mike" sub-directory I have published to my server:

<strong>http://www.heartelements.net/shirts4mike</strong>

here is the URL resulting from clicking on any of the links related to SHIRT products (which returns a 404):

<strong>http://www.heartelements.net/shirts4mike/shirts/</strong>

finally, here is the URL to the published shirt page

<strong>http://www.heartelements.net/shirts4mike/shirts/shirts.php</strong>

This is the code in the .htaccess file as per directions from Randy - which all worked well and good in the htdocs directory on my localhost site, no problem (no problem even when files & folders were transferred to a subfolder within that htdocs location)

RewriteEngine On
RewriteRule ^shirts/$ /shirts/shirts.php
RewriteRule ^shirts/([0-9]+)/$ /shirts/shirt.php?id=$1
RewriteRule ^receipt.php$ /receipt/ [R=301]
RewriteRule ^contact.php$ /contact/ [R=301]
RewriteRule ^shirts.php$ /shirts/ [R=301]
RewriteRule ^(shirts/[0-9]+)$ /$1/ [R=301]

RewriteCond %{QUERY_STRING} ^id=([0-9]+)$
RewriteRule ^shirt.php$ /shirts/%1/? [R=301]

I hope someone has some ideas about this,

Thank You!