XP-home ed. sharing files

Hi!
I’m trying to share files between two computers: one running XP home edition SP 2 (swedish) and one running Win 2000 SP4 (english). I am using the router i use to share my internet connection between the computer to do this.

I am successful in accessing the XP-machine from the W2K but when trying the opposite I get a very non-helpful “Access denied!” message. Both computers are visible in my Network places from both computers. No firewalls are in use and ftp transfer between the computers work in both directions and no matter which computer is the client.

I tried following the tips of
http://support.microsoft.com/kb/304040
without success.

Anyone with ideas pls let me know

/Styrbj?rn