Welcome to the PCB Artist Update Page. When updating your software, be sure to review the documentation for safely updating software to another full version. This will include saving your personal libraries in another location, and saving any schematic, PCB and project files. This may be found here: Upgrading PCB Artist Safely
Patches may be installed without back up the previous files, though it is a good habit to create back ups in any case.
For users who have version 1.5 of PCB Artist, the 1.51 patch is found here:
A full download of PCB Artist 1.51 is found here(From CNet):
Close PCB Artist before installing the newer version.
Click here for a direct download of the full version, if the above download link does not work.