I am making a minecraft-like game and I want to know how I can get a texture on a part. I will accept videos or other links.
Look at the Texture post on the wiki.
To add a texture do the following.
Upload the image you want to use as a Decal Using the Insert menu, place your Decal on an object. Select the Decal in the Explorer Window. Under Properties, copy the link next to "Texture". Put a Texture object inside the Part that you want the texture on. Use the Insert Object menu. Paste the link into the "Texture" property.
Do that as many times as you would like. Change the "Face" to the side you want that texture on.
game.Workspace.PartName.Material = Enum.Material.MaterialHere