Will try to explain (considering of my poor English knowledges)...

I'm about to create my first site... Just in start of it... So, I have a little problem here...

In the first instance, my site were created with two pages, then I had added another 3 pages which I have named 'Live-Chat', 'Live-Support', 'ShoutBox'... In the case of the last page, it's all just fine, I got URL with 'http://....zohosites.com/ShoutBox.html' in the name of it... And now my question is: Why dont I got the same URLs in the cases of the first and the secon pages?.. Instead of it I have: 'http://....zohosites.com/Live-Chat 1.html' and 'http://....zohosites.com/Live-Support 1.html' - why so?.. Why is the '1' symbol were added into my names in URLs?.. And can I fix it somehow manually?.. Thanks...