Could someone please help me with part of a script? I a m trying to convert it from Quest's set-QADuser into set-ADUser.

The original line is:
Import-Csv adfile.csv | %{Set-ADUser $_.userID -ObjectAttributes @{UserParameters=$_.UserParameter}}

Apparently the AD module in windows7 / R2 does not understand ObjectAttributes, or at least doesn't like my syntax.  :-)

Set-ADUser user1 -Replace @{ParameterLDAPName=; ParameterLDAPName=}

For more information on other options (-Add/-Remove/-Clear):

PS > help Set-ADUser -Parameter replace