Hoping to help, not sure where to start.
I think the business your referring to is
Wizard coin supply.
And the albums are named coin collector.
I have not seen these albums, except for picture online.
To me they look like a cheaper version of Dansco albums.
But I could not comment on the quality of them, maybe
someone else has purchased them, and wil post.
As for the term "with proof only". That means for the years there
were only proof coins minted for a certain year will there be a
port/hole for that coin.
For example: In 1980 the San Francisco mint made a 1980 S proof
Lincoln Cent. They did not make a 1980 S mint business strike coin.
So there will be a port/hole for the proof coin.
In 1964 the Philadelphia mint made both a business strike coin
and a proof
Lincoln Cent. There will be only one port/hole,
you can decide which one to fill that Port/hole with.
To sum it up, if a mint made both a proof and business strike in the
same year there will be only one port/hole.
If a mint made only a proof coin for a certain year, than the album
will have a port/hole for that proof coin.