It's been up a few years now since all the old photos were made public. Navigation can be a bit tricky if you don't know Finnish though.
Here's a few keywords to get started. I'll try to update when I'm not at work
panssari = tank
rynnäkkötykki = STUG's etc.
motti = encirclement tactic used by finnish army
panssarinyrkki = panzerfaust
hävittäjä = fighter
pommikone = bomber
lentokone = airplane
saksalainen = german
Some interesting battles and location etc. that you can try to search for
Raate
Tali
Ihantala
Petsamo (reindeer sleds!
)