Two silly questions from a novice

I have just purchased a BANG & OLUFSEN BEOVOX S45-2 SPEAKERS without the pedestals. Would the pedestals taken (from BANG & OLUFSEN Beovox S75) Floor Speakers model fit the S45-2?

What should I be looking for when buying a non b&o receiver to match with the S45-2.?  (actually I purchased 2 already) thanks in advance.

james