How to apply a module to a specific tag page?

[seadhna]

Hi there,
I'm trying to apply a module to the top of a specific tag page, e.g: www.example.org/tags/one+two
It doesn't work.
If I try to apply a module to a ONE-WORD tag, it works, e.g.: www.example.org/tags/one
but how do I format a two-word tag in a menu link? space is not permitted and plus symbol doesn't work.