img source help????

hey there

I use an upload script that uploads a picture to my server and in my database the full map path is also inserted
however on the page where i wish the thumbnail to be shown, damn it does not get shown

the source is like this
<img width=\"90\" height=\"80\" src=\"<%=thumb%>\">

and in the database \"thumb\" colume has the following
d:\\home\\guzziedk\\www\\mediascope\\thumbs\\bsgloben00-05.jpg

Why is it then that the img cant be shown on the page
please help
Guzzie