last access fo directory

Hi,
ts been a long time since I post to news server , hope note to
regretted - (because of spam)

anyway... I have 2 questions :

1) how can I known which user logged last to a specified directory
and what were the changes ? would prefer some utile instead of GPO .


2) I have a storage device connected to my server .we use him to get
more space , users don't have a map to it , and there is no "sharing
tab " on the device , but , users can access to the storage thru :
my network places - show network connections "- and I must to disable
it!!!!! how can I do it , when there is no "sharing " tab ???


will appreciate any help.

Thanks.


Debby