What you need to use it is an internet address:
Mine at NTL is:
http:// homepage.ntlworld.com/ bpesala/ aimwell/ index.html
For your webspace provider I assume that it will be similar.
http:// this bit will probably be the same
homepage.ntlworld.com = 0catch.com or homepage.0catch.com or whatever they say it should be
bpesala = your username (probably)
aimwell = this is just a folder on my webspace, you may not need this bit
index.html = this will be the name of the html file that you uploaded.
Finally you get a link like this: