I'm trying to setup wine, you install with a normal user, but since the normal user can't access /mnt/windows, wine is unable to run any windows programs.
I have tried to change the permissions on the /mnt/windows , but I am not able to.
Any ideas on how to proceed?

have you added it to fstab and if so, what does the entry look like in there ? also, what permissions as well do you have not for /mnt/windows but for the dev it is on... ex. /dev/hda ??

my vfat mounts look like...

/dev/hdb1 /windows vfat defaults,umask=000,quiet,user 0 0

the 000 meaning everyone can do anything to it.

I changed /etc/fstab and put the umask in like you have. It allowed me to cd to /mnt/windows, but I'm unable to see anything in that directory. I can't see anything even if I'm root.

there must have been some error with that, I changed the owner of /dev/hda1 to the user I want, but I still can't cd /mnt/windows

Here's my /etc/fstab. I can't cd to it still even with user set.

/dev/hda9 / ext2 defaults 1 1
/dev/hda6 /boot ext2 defaults 1 2
none /dev/pts devpts mode=0620 0 0
none /dev/shm tmpfs defaults 0 0
/dev/hda8 /home ext2 defaults 1 2
/dev/scd0 /mnt/cdrom auto user,iocharset=iso8859-1,exec,codepage=850,ro,noauto 0 0
/dev/fd0 /mnt/floppy auto user,iocharset=iso8859-1,sync,exec,codepage=850,noauto 0 0
/dev/hda10 /mnt/win_c vfat iocharset=iso8859-1,codepage=850 0 0
/dev/hda11 /mnt/win_d vfat iocharset=iso8859-1,codepage=850 0 0
/dev/hda1 /mnt/windows ntfs user,iocharset=iso8859-1 0 0
none /proc proc defaults 0 0
/dev/hda5 /var ext3 defaults 1 2
/dev/hda7 swap swap defaults 0 0