У меня так делает (без ID), код выкладываю:
# .htaccess automaticaly generated by PrestaShop e-commerce open-source solution
# WARNING: PLEASE DO NOT MODIFY THIS FILE MANUALLY. IF NECESSARY, ADD YOUR SPECIFIC CONFIGURATION WITH THE HTACCESS GENERATOR IN BACK OFFICE
#
http://www.prestashop.com -
http://www.prestashop.com/forums<IfModule mod_rewrite.c>
# URL rewriting module activation
RewriteEngine on
# URL rewriting rules
RewriteRule ^api/?(.*)$ /webservice/dispatcher.php?url=$1 [QSA,L]
RewriteRule ^([a-z0-9]+)\-([a-z0-9]+)(\-[_a-zA-Z0-9-]*)/[_a-zA-Z0-9-]*\.jpg$ /img/p/$1-$2$3.jpg [L]
RewriteRule ^([0-9]+)\-([0-9]+)/[_a-zA-Z0-9-]*\.jpg$ /img/p/$1-$2.jpg [L]
RewriteRule ^([0-9])(\-[_a-zA-Z0-9-]*)?/[_a-zA-Z0-9-]*\.jpg$ /img/p/$1/$1$2.jpg [L]
RewriteRule ^([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?/[_a-zA-Z0-9-]*\.jpg$ /img/p/$1/$2/$1$2$3.jpg [L]
RewriteRule ^([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?/[_a-zA-Z0-9-]*\.jpg$ /img/p/$1/$2/$3/$1$2$3$4.jpg [L]
RewriteRule ^([0-9])([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?/[_a-zA-Z0-9-]*\.jpg$ /img/p/$1/$2/$3/$4/$1$2$3$4$5.jpg [L]
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?/[_a-zA-Z0-9-]*\.jpg$ /img/p/$1/$2/$3/$4/$5/$1$2$3$4$5$6.jpg [L]
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?/[_a-zA-Z0-9-]*\.jpg$ /img/p/$1/$2/$3/$4/$5/$6/$1$2$3$4$5$6$7.jpg [L]
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?/[_a-zA-Z0-9-]*\.jpg$ /img/p/$1/$2/$3/$4/$5/$6/$7/$1$2$3$4$5$6$7$8.jpg [L]
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?/[_a-zA-Z0-9-]*\.jpg$ /img/p/$1/$2/$3/$4/$5/$6/$7/$8/$1$2$3$4$5$6$7$8$9.jpg [L]
RewriteRule ^c/([0-9]+)(\-[_a-zA-Z0-9-]*)/[_a-zA-Z0-9-]*\.jpg$ /img/c/$1$2.jpg [L]
RewriteRule ^c/([a-zA-Z-]+)/[a-zA-Z0-9-]+\.jpg$ /img/c/$1.jpg [L]
RewriteRule ^([0-9]+)\-[a-zA-Z0-9-]*\.html /product.php?id_product=$1 [QSA,L]
RewriteRule ^([0-9]+)\-[a-zA-Z0-9-]* /category.php?id_category=$1 [QSA,L]
RewriteRule ^[a-zA-Z0-9-]*/([0-9]+)\-[a-zA-Z0-9-]*\.html /product.php?id_product=$1 [QSA,L]
RewriteRule ^([0-9]+)__([a-zA-Z0-9-]*) /supplier.php?id_supplier=$1 [QSA,L]
RewriteRule ^([0-9]+)_([a-zA-Z0-9-]*) /manufacturer.php?id_manufacturer=$1 [QSA,L]
RewriteRule ^content/([0-9]+)\-([a-zA-Z0-9-]*) /cms.php?id_cms=$1 [QSA,L]
RewriteRule ^content/category/([0-9]+)\-([a-zA-Z0-9-]*) /cms.php?id_cms_category=$1 [QSA,L]
RewriteRule ^([0-9]+)(\-[_a-zA-Z0-9-]*)/[_a-zA-Z0-9-]*\.jpg$ /img/c/$1$2.jpg [L]
RewriteRule ^page-not-found$ /404.php [QSA,L]
RewriteRule ^address$ /address.php [QSA,L]
RewriteRule ^addresses$ /addresses.php [QSA,L]
RewriteRule ^authentication$ /authentication.php [QSA,L]
RewriteRule ^best-sales$ /best-sales.php [QSA,L]
RewriteRule ^cart$ /cart.php [QSA,L]
RewriteRule ^contacts$ /contact-form.php [QSA,L]
RewriteRule ^discount$ /discount.php [QSA,L]
RewriteRule ^guest-tracking$ /guest-tracking.php [QSA,L]
RewriteRule ^order-history$ /history.php [QSA,L]
RewriteRule ^identity$ /identity.php [QSA,L]
RewriteRule ^manufacturers$ /manufacturer.php [QSA,L]
RewriteRule ^my-account$ /my-account.php [QSA,L]
RewriteRule ^new-products$ /new-products.php [QSA,L]
RewriteRule ^order$ /order.php [QSA,L]
RewriteRule ^order-follow$ /order-follow.php [QSA,L]
RewriteRule ^quick-order$ /order-opc.php [QSA,L]
RewriteRule ^order-slip$ /order-slip.php [QSA,L]
RewriteRule ^password-recovery$ /password.php [QSA,L]
RewriteRule ^prices-drop$ /prices-drop.php [QSA,L]
RewriteRule ^search$ /poisk.html [QSA,L]
RewriteRule ^sitemap$ /sitemap.php [QSA,L]
RewriteRule ^stores$ /stores.php [QSA,L]
RewriteRule ^supplier$ /supplier.php [QSA,L]
</IfModule>
# Catch 404 errors
ErrorDocument 404 /404.php
<IfModule mod_expires.c>
ExpiresActive On
ExpiresByType image/gif "access plus 1 month"
ExpiresByType image/jpeg "access plus 1 month"
ExpiresByType image/png "access plus 1 month"
ExpiresByType text/css "access plus 1 week"
ExpiresByType text/javascript "access plus 1 week"
ExpiresByType application/javascript "access plus 1 week"
ExpiresByType application/x-javascript "access plus 1 week"
ExpiresByType image/x-icon "access plus 1 year"
</IfModule>
FileETag INode MTime Size
<IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE text/javascript
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
</IfModule>
Настройка .htaccess и ЧПУ