I think you'll find that the file it self will say

s2010f_plus_23oct.zip (1.06 MB, 5 views)
if its buzz plus

and
the REGUAL file will just have

s2010f_26oct2007.zip (1,012.7 KB, 3 views)

But just use the right area to be really safe
In our buzz file area --> HERE

Buzz S2010F Regular Files
Buzz S2010F Plus Files <- If you want buzz plus than click on this one and so on !
Buzz S2020F Files

Hope this helps