The best solution at the moment for a gallery for your PostNuke site is called My_eGallery. It is available for download at the My_eGallery page.

The installation of it can be completed in a few steps:

STEP 1 Download and unpack the zip file at your local hard drive.

STEP 2 Upload the content of the folder to the /modules folder of your Postnuke.

STEP 3 Go to the Administration area and then to the Modules section.

STEP 4 Initialize the module by clicking on the link next to it.

STEP 5 Activate the module and create a block for it as described in the Modules and Blocks section.

Well done! You have successfully installed the Gallery module to your PostNuke website!