How do I add another / in my image path? <img src="bmz_cache/1/1cacbd23752030bf63f509

[kitcorsa]

ive got the following code

. zen_image(DIR_WS_IMAGES . $random_featured_product->fields['products_image'], $random_featured_product->fields['products_name'], SMALL_IMAGE_WIDTH, SMALL_IMAGE_HEIGHT) .

which outputs <img src="bmz_cache/1/1cacbd23752030bf63f50921668eb75c.image.130x115.gif" .......etc

i need the code to add extra / or the full domain adding so the image will display.
this is on a site with IH installed, but have tried it on a site without got a simular problem. do you know how to add that in there??