Links to the 8.0 series builds can be found in the comments
Download XviD4PSP 7.0 Win64
Download XviD4PSP 7.0 Win32
Download XviD4PSP 7.0 Mac64
Download XviD4PSP 6.0.4.9384 Win64
Download XviD4PSP 6.0.4.9384 Win32
Download XviD4PSP 6.0.4.9384 Win32 PORTABLE