Hey guys, I am new to javascript and unity, but with unity I have experimented varios stuff before so I know a thing or two.
I`ve set of on creating a side-scroller game and apply thing I learn as I go, I think it really helps to really have a project and apply things you learned on it, it really helps and when things go right or you successfully accomplish a thing it feels more rewarding.
Now, even if I dont have the required knowledge for javascript, with the help of some few built-in scripts I managed to get a start. A 2D character which can jump and walk, I also drawn some textures I am using for the platforms and some minor decor bushes. Its really nice and cute: Screenshot , its not much but it keeps me motivated. Even if there is alot of other things that needs to be done first, I want to know how can I add some animations to my character. Ive drawn him in a walk position, Ive imported the texture and created an animation called walk, but thats all I could achieve, Ive seen an unity article but it didnt help me, tried attach a script to the game object found on that article but of course it didnt work.
So I would very much appreciate if someone could tell me step by step, how to successfully animate my character. Let`s take as example the walk animation as I already want to add it. How do I do it? 
Arrange all your frames in a grid into a single image and then Pan the UVs around to display the desired frame.
I do not know much of animation, anyway that didnidn’t stop me from placing animated characters in the Unity scenes, I made. I have just placed ready-made characters together with animation sequences from somewhere. There ane many animation examples on the Unity3d webpage. You can try soldier from the BootCamp demo or anything. I just imported the characters, then accessed their animations from script and thats all.
If you like to use your own sketched characters - follow AcidArrow advice.
maybe this could give you a start:
Ok thanks, I will look into it. If you have any more tips keep em coming.
Also, I am experiencing some sort of sliding effect, tho sliding is disabled, it happens when moving for some time, when I stopped pressing left or right arrow, my character still goes for a bit. It`s even worse when jumping, while I jump the character goes crazy and if i press left or right arrow it would burst into the specific direction. Plus, when I do diagonal jump to reach for a platform, when it touches the “ground” it slides like one ice (Note that the textures serving as ground are not composed of any material: wood, ice, rubber.).
Also, Toasty, I followed your link but if I add the walk pose as a material to the game object I want to animate, it will simply replace the current texture with the material texture. 
For example this unity article http://unity3d.com/support/documentation/Manual/Character-Animation.html#ImportAnim, doesnt help me at all. Why would I need that when I cant even create an animation.
If someone could tell me like this: “First of all import your desired texture which serves as walk animation. Then create an animation…etc.” Something like that…Because for a newbie I cant understand what to do when someone tells me, create the walking animation in one image but all having the same size, then add them…That doesnt help in any way…How am I supposed to draw them, and then simply add them? What does that “add” mean?
Maybe you did not understand my concept, I simply want my character to switch to the walk pose when I press left or right and then one more pose. I dont need detalied animations, it has to be a simple 2D game, 2 frames for walking is more than enough.
HERE IS HOW I TRIED TO ADD ANIMATION: This is only to make yourself an idea about what I am trying to do, I imported the walk pose texture into unity and named it walk, I created an animation file named walk and applied it to my game object ( the character I want to do the animation), it didnt worked. I made a material and selected the walk pose, tried adding it to my character as it says in the link Toasty made, but it wont work, it would simply replace the texture with the one in the material…
Look, I want it to do like this guys game: [http://robotlovekitty.blogspot.com/2011/11/2d-in-unity3d.html](http://robotlovekitty.blogspot.com/2011/11/2d-in-unity3d.html). See??? He only has two simple textures for the walking animation, how do I get that too? I would ask him but I already did many times and hes rather busy.
God, I am so frustrated…~headache~
EDIT: Also, just to make sure you guys get what I want…I want to know how to implement the animation. Because I have already drawn to walking poses for my character and there is no need for me, I want to know how can I get that texture to be applied to my character as animation.