Problems with Guestbook V 1.0

Dear ZMSers, 

I face a problem using the Guestbook Object (H. Keicher, Dr. Stefan 
Schneider, 12.12.2003, Version: 1.0). 

After clicking on the "guestbook" under 
http://homepage.hispeed.ch/Mandes_Hompage/e105/e428/index_ger.html 
the input interface is not shown. 

Local with the ZMS-interface the input interface is shown and entries 
can be made.

Additionally, with a click on "Weitere 1" another error message is 
generated. 

I think the problems could be related to the FTP export using ZMS 
interface.

Thanks for your help.

Best Regards

Andreas

System:
WinXP SP2

ZMS: 2.1.2.7 (Build #117b)
ZOPE: (Zope 2.6.1 (binary release, python 2.1, win32-x86), python 
2.1.3, win32)
PYTHON: 2.1.3 (#35, Apr 8 2002, 17:47:50) [MSC 32 bit (Intel)]
System Platform: win32
System Time: 2008/02/11 09:20:28.150 GMT+1
Running For: 1 hour 27 min 34 sec
ZODB Location: C:\Programme\WebSiteZope\var\Data.fs
Database Size: 428.6M