ms installer error

[Steve UK]

i have redirected the my documents folder to a partition named g:\

so the new path is g:\documents and settings\steve\my documents ( have done
this by right clicking the my docs folder and editing the target location).

when i try to install paint shop pro 8 it wants to install a folder called
'my psp' into the my documents folder.

the system is returning an error during installation that says, 'ms
installer does not have the neccesary permission to access g:\documents and
settings\steve.

how can i give ms installer permission to access this folder and create the
directory that it wants to?

thanks.