Before you install the plug-in filters, you will need to download and install two dll files MSVSCRT10 and PLUGIN, after you download unzip them to Windows > System Folder.
Once you have installed the the two file, you will need to create a filters folder in your C: directory to install filters in.
After you download a filter you unzip to the filters folder in your C directory.
Next Open Paint Shop Pro
Version 7.0
Click to view full image - Go to File > Preferences > File Locations
Click to view full image > Click on browse to locate your filter folder
Click on image to view full image > To use filters go to Effects > Plug-In Filters > and on the > and you'll see a list of the filters you have installed.
For Further Details GO TO:
http://iezombie.net/how-to-install-filters-to-paint-shop-pro-version-7-and-x3/