In post #9 it says he is using 3.5 but whether that refers to the zbrush version or the plugin version.
Richard
I am having the same problem as the other guy, however I am using Zbrush 3.5R2.
See attached pic showing all of my folders in my Zbrush install.
I click on Zplugin (top toolbar) and only see Misc Utilities, ProjectionMaster and Deactivation.
Would really like to try the UVMaster thing, any help would be appreciated.
Regards
Attachments
I am also having this problem. I am using 3.5 r3. Uvmaster does not show up n the zplugins menu
It requires 3.5 R3 on the PC. R2 won’t work. Please contact http://support.pixologic.com so that you can get upgraded to R3.
I have the exact same problem and double checked that I have Zbrush R.3.
i have the exact same problem, i have every other plugin installed and working just fine, double checked, zbrush 3.5r3, i know how to install plugins since everyother works, but uvmaster somehow doesn’t. tried winrar, winzip and downloaded it like… 7 times 
Please show two screenshots:
- The contents of your ZPlugs folder
- Your ZBrush interface (the whole interface)
Hi i have zbrush 3.2 mac and cant get the plugins to show up ive attached images of the interface and zplugs folder 
Attachments
rstaton88,
You have them installed incorrectly. Downloaded plugins should always be installed in the ZStartup/ZPlugs folder, never the ZData/ZPlugs as you have them. Move the ImagePlane_Mac32.zsc, UVMaster_1.0.zsc and UVMasterData_1.0 folder to the ZStartup/ZPlugs folder, restart ZBrush and all should be well.