Title pretty much says it all. I have just started using blender 2.7, been on it for about a month, and have spent hours watching tutorials and reading and playing around with it.
I have built a model of a house, not for anything specific just wanted to do a whole model from start to finish as a learning project. I am happy with the model but I just can't get the textures to work. I am using cycles render but have also tried blender render. I textured the roof: marked seams>unwrapped>new material> nodes etc, and it looked really good, I was happy with it, so I marked seams for the door frame, unwrapped and set the texture and nodes etc but the wood texture applied itself to the roof as well as the door and made the rest of the model go a brown colour with out displaying the texture. I played around with the roof and got the right texture to display again, but it displayed on the door as well.
I really don't know what I am doing wrong, even when I follow a tutorial it doesn't work for me. I even tried a simple sword model, thinking the house might just be too much for a beginner, but the texture for the handle would assign itself to the whole model, none of my textures will stay seperate like I want them to.
This is really frustrating me as I am eager to learn and this would be an amazing skill to learn alongside my computer science degree, but it just won't work. Hopefully I am just missing something really simple and obvious, but a knowledgeable helping hand would be great.
Edit: the post marked as the same as this one hasn't helped, I have worked through that thread a few times and it hasn't solved my issue. The uv maps won't hold seperate textures for me, blender applies the latest texture to every material and uv map on my project.