If your furniture is not changing colors or textures properly, please follow these steps to correct it.
1. Right click edit the pieces that is not working properly. Once you have done this, go to the Contents tab and wait for everything to load.
2. Once the list has loaded, go to the Tools menu and select, Reset Scripts in Selection.
3. Please be aware, if SL is acting wonky, buggy or glitchy you might need to reset it more than 1 time before it starts to work properly.
Alternative Method:
If you have no luck with resetting scripts in the entire object, you can edit linked parts and reset the scripts manually.
Look in the object contents for the following scripts:
TexChanger_v1.8_mono and
TexChanger_v1.8_mono_Builder_script
Open the builder script first, then click the reset button. Once that is finished, open the mono and reset it. Your object should now change textures properly.
If you require further assistance please let me know and thank you for your purchase. :)