Hi I can't add service at VS2008 to Sharepoint services when i tried to
http://tomasekweb.com/Test1/_vti_bin/Lists.asmx and click on GO
The user and password was needed,I typed it but, it's still needed. I don't know, what i have to set on sharepoint site. I have only one user on Sharepoint server.
I assume you've put the server name in that URL?
You should put the full path to the web service including server name, and after that convert it to a dynamic web service so that you can adjust the URL appropriately at runtime (through configuration or within the code).
If the path is correct (and full) then the connection should work fine.
If it still isn't working, consider whether you are connecting to the sharepoint instance via a proxy. Windows Authentication does not work over proxies due to the authentication token only being able to make one network hop... this is known as the double-hop bug. It's not really a bug, it's by design and is designed to prevent man in the middle attacks... so don't use a proxy.