Land texture...

not sure if this is the palce to post this or not...but I am desperate...We rent an island and would like to change the texture of the land...How is this done? does anyone know?

Only the sim owner or an estate manager for the sim can change the island texture. If you are renting a whole island from someone, they will have to give you estate manager rights for the sim, in order to change the land texture yourself.

If you do have such rights, let me know, here, and I will offer more detailed help. I'm an estate manager for two sims, and have done sim-wide terrain texture changes before. I can tell you what can and can't be done, and how to do it. But you have to have estate manager or sim owner rights first.

It would also be helpful to know what you mean by 'change'? Substitute fresh textures for existing ones? Or change the height at which a given texture changes to another?

Either or both can be achieved, but only if you have the requsite permissions.

Question is are your renting the island from someone who owns the sim or from the Lindens.
If you are the actuall owner of the Isalnd not just a paid renter of it (in game so to speak) you should have full rights for the textures, otherwise you wil have to speak to the owner of the Sim itslef (the person whom you rent from).

In short, an estate manager or sim owner has limited control over land texturing, sim-wide. You apply four textures to four altitude-restricted bands, and can adjust the limits of those bands somewhat at each corner of the sim. (To be accurate, you actually apply a low rez version and a high rez version of each of the four textures). Then the SL client 'paints' that terrain based on altitude, blending the tiled textures at each border. With effort, you can do things like having coral sea-bottoms, white sandy beaches, green hills, and rocky ridges and mountain peaks. By adjusting the corners, one area may have sandy beaches, while another has rocky coastlines. But there is no fine control on a per-parcel basis.

If you look in the library section of your inventory, there is a folder in there with terrain textures in it. You can use those, or you can create your own, with the same resolution size pairings as the base and high-rez versions of one of the library pairs. Off the top of my head, I believe it's a 128 x 128 base and a 512 x 512 main texture for each one, both of which must be seamless and tilable.

If you don't have control over the whole sim as owner or estate manager, then covering the land with prims textured like terrain is your only choice. Not a very good option, but useful in some cases.