I had this problem. At first it had the original mesh and new texture, the next time it had the new mesh but the old texture. Completely clone another object, but you csan still use the models/textures you made before. If that doesn't work read the FAQ's at the SimPE website.
If that is the original texture that was in the package before you imported yours then check that it has updated for all sizes (the full zoom is surprisingly far in).
If it is set for all then the object is likely pulling its textures from somewhere else so check your clone settings carefully, make sure you've checked standalone object and pull default colour only and clone a fresh sofa base (suggest the zecutime base game sofa if you want one with 2 sub-sets as there are the least number of horrors in that compared to some of the others which pull in all sorts of random rubbish)
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