Did you put the wrong bulb in and short it? Have you tried the bulb both ways around? Only works one way round IIRC.
The fuse box your after is in the end of the dash, behind this panel......
And this is it (similar)......
This is just a generic pic of a fuse box from a Mk5 golf taken from the web so your fuse layout may look different but the interior fuse is the fuse in slot 15 that's says 7.5 which is the amp required (as in the pic)
Hope this helps.