Do you have each frame of the animated sequence ready? Have you put the appropriate lines into the .vmt file? Imported all frames into a .vtf? What point are you at, in other words?

Right now im trying to get the animated background from a gif and i dont really know how to get it to a vtf thats animated

When you're importing, just select all the images in the sequence at once. It will import all selected images as an animated sequence. Make sure to choose Animated Texture in the options, although I'm pretty sure that's default. Then you'll need to add the animation code to the corresponding .vmt file, as such:
"AnimatedTexture"
{
"animatedTextureVar" "$basetexture"
"animatedTextureFrameNumVar" "$frame"
"animatedTextureFrameRate" "15"
}

Take note of the frame rate and factor that in while creating your animation.
Place your .vtf and .vmt together in the appropriate folder structure accompanied by your addon.txt file and pack it all into a .vpk. Stuff that .vpk up your addons folder and you're ready to rock.

Wait, are you saying you just have a .gif and you don't have the individual frames? You're going to have to save each frame from that .gif via Photoshop or some other program first if you haven't broken it apart yet. And you should probably save each frame as a Targa file. Also, make sure to name each frame sequentially. Like Pic_01, Pic_02, Pic_03, etc.

I get what im doing now, also ive split up the gif to seperate images

Originally posted by Davy Jones:

I get what im doing now, also ive split up the gif to seperate images

Excellent. Good luck, it sounds like you'll be fine.