LAN is possible get someone to click create game and set it up. Other players just go to find games and go to the LAN section and your game should be there. Wait till the game is fully loaded to the team selection page.
sure you can just start a custom match and you can add bots by pressing (`) button and typing in add_bot
That's not available for CS:S, sorry.
If you want to play online against other players yes, but you can play offline against bots.
No, Counter-Strike: Source is a one-time fee.
Download steam from steampowered.com and search for counter-strike source
yes you can
no
You need to have counter strike source installed to play trouble in terrorist town.
Download Counter Strike Source. Play Counter Strike Source. Delete Counter Strike 1.6 It's 2012 for christ sakes.
I use windows 7 and I play source fine.
There is no Counter Strike 2.0, but i think Valves new game Counter Strike Source would count. New graphics, maps and stuff like that. It's run on the source engine. What you do is download a program called steam, find the steam store, find counter strike: source there, buy it and it will download. Then you can play :D
no
Delete the folder and win
Play on the map scoutzknifez and you'll get better.