Where to download Photopia or ProShow templates, style packs, effects, etc.

I need to spice up my slide shows and need more styles and effects.

I am new to Photopia from ProsShow.  I had some of my style packs to import, but not all.  Where can I purchase templates, style packs, effects, etc?  I want a legit resource as some out there seem kinda sketchy.

I would like them all:

Volume 1

Volume 2

Volume 3

Volume 4

Vintage

Weddings

Escapes

Grunge Appeal

Thanks,

Keith