well until next week with year 11 i wont be on as much but now i can platy 2 my hearts desire

I'm at my best on weekends, as previously stated.

*off* question
is the single player campaign of Warhammer 40K Complete good ? I mean the enemy AI.

warhammer? during the superbowl?
PLEASE.

I didn't find the AI particularly good, but the campaign is fairly enjoyable. I finished it a few weeks back, now on Winter Assault (chaos), which I'm not finding quite as good... possibly because of having to get used to both Orks and Chaos units.
The AI tend to send units against you at intervals, with the intention being (on many maps) to push forward and capture the resource points (this strengthens you and weakens them, unless they get "free" units from the computer team "cheating" (scripted events etc.).
I've been playing Men Of War recently, and though I can't speak too much for enemy AI, it's a far better RTS (imho). The enemy tanks certainly zero-in on my artillery and tanks quickly enough, and will use grenades or whatever in a relatively intelligent manner. Friendly AI is also very good (you can set up a defence and leave them to it, they won't move about much, but they do use whatever weapons they have against appropriate targets).
[edit] Superbowl? You call that football?

Ehh, it's not that bad. The main difficulty is that the AI in every game tends to be very conservative. Its strategy is to slowly draw up resources until it can attack you with overwhelming force, generally, and this works well when you, the player, are starting with a disadvantage in resources. How frequent the raids are is directly proportional to how many strategic points the enemy has.
That said, which campaign are you talking about?
If you mean the SP of the basic game, then it's fine, as long as you keep in mind that the entire campaign is one long tutorial that teaches you how to use different unit types on different terrain. The story's a good, classic tale of war, "redemption," and pyrrhic victory, just like Warhammer 40K should be.
If you mean the Winter Assault campaign, how good it is depends heavily on which faction you're playing with, and some factions may be harder to win with than others, for the most arbitrary of reasons. The story recieves significantly less emphasis.
If you mean the Dark Crusade Campaign, it's alright, but not really good enough to justify playing through seven times in a row with every faction, largely because the story is even more marginalized, leaving you to play through the same maps over and over again with little justification. The biggest problem with it is that, as you gain more resources, wargear, and special abilities through conquest, subsequent conquests get progressively easier until there's hardly any challenge unless you deliberately handicap yourself. After a while, only storming enemy strongholds is any fun. Also, the Necrons are more powerful than everyone else.
If you mean the Soulstorm campaign, it suffers from the all of same problems as Dark Crusade, with the additional troubles that moving from place to place takes longer, and that the Space Marines and Sisters of Battle both have huge advantages from their Deep Strike and Forward Base powers, respectively, while everyone elses' special powers are nigh-useless.

Is there any mod with good AI ?

No.

Ouch. The harsh truth I suppose.
I do get the feeling that AI hasn't advanced very much (outside of isolated cases) since the 90s. I suppose it's a difficult and expensive thing to improve, and many players might not even realise or benefit from it.

Thanks for the answers guys.

It's hard to say, really. How sophisticated you CAN make an AI depends on many factors, including:
1. What kind of engine the game is based on. Unless the computer cheats, it's hard to make it possible for the enemy AI to do something that the player cannot do.
2. How hard the developers want the game to be. Designing "scaling" AI is complicated, so making enemies who automatically know to take cover/guard strategic points/steal powerups/etc. is a risky business if you want the player to still be a match for them.
3. What kind of mapping system NPCs in the game use to move. If you've ever seen an NPC move in a zigzag of right angles instead of going in a straight line, you will understand. what I mean.
4. And many more, depending on the type of game.
All things considered, I'd say it's probable that the AI we have has evolved with the games we have, and they are roughly equal in sophistication, for both good and ill.