I have found a few links to what I believe are different versions of Paltalk.
All versions of Paltalk have file name pal_install.exe. The size of the current version is ca 874 kB.
Links:
Size ca 411 kB
ftp://ftp.ware.ru/win/pal_install.exe (dead link)
Size ca 504 kB
http://rain.prohosting.com/hnm/pal_install.exe (dead link)
Size ca 723 kB
http://www.fonevida.com.br/programas/pal_install.exe (dead link)
ftp://ftp.tugab.bg/internet/pal_install.exe (very, very slow connection and now dead link)
I hope you will find any of these links useful