anonymous access to FTP 10.6.2

So, I’m converting to MAC OS X on a mini for mobile meetings. The old system used IIS FTP which made it real easy to allow anonymous write via FTP. I then set NTFS directory and file permissions to restrict writing to all directories with the excpetion of a few directory for which anyone on the LAN could contribute. This MAC Mini Server is great for travel to these meetings. Bottom line, I want the system to look as it did before for my customers.

Can I tinker to get anonymous write access to selcted directories? Support says they cannot tell me how to do this.

Thanks in advance,

Jeff