An upload to cam.ctan.org is in /anfs/ctan-inc/upload-20040724-182436/
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The following information was provided by the package's contributor.
Name of contribution: probsoln Author's name: Nicola Talbot Location on CTAN: macros/latex/contrib/probsoln Summary description: generate problem sheets and their solution sheets License type: lppl
Announcement text given by the package's contributor:
The package probsoln.sty is designed for lecturers who have to generate new problem sheets for their students on a regular basis (e.g. yearly) by randomly selecting a specified number of problems defined in another file. This means that you can easily generate a new problem sheet that is different from the previous year, thus alieviating the temptation of students to seek out the previous year's students and checking out their answers. The solutions to the problems can be defined along with the problem, making it easy to generate the solution sheet from the same source code.
You can have a look at the package at http://http://www.tex.ac.uk/tex-archive/macros/latex/contrib/probsoln although you may get a better network connection by visiting a mirror of CTAN that is near to you; see http://http://www.tex.ac.uk/tex-archive/README.mirrors
thanks for the upload. i've now installed it as i've indicated.
Robin Fairbairns
For the CTAN team