Donald Arseneau writes:
I have uploaded placeins.sty version 2.0 to ctan/uk, destined for macros/latex/contrib/other/misc
The default behaviour has been changed to prevent floats from floating up past a FloatBarrier. A package option [above] is now provided to restore the original more permissive behavior (in analogy with [below]).
(Licence is public domain)
i've installed the file as requested; thanks for the upload.
Robin Fairbairns
For the CTAN team