Problem with userimport in lwat

[Frank Weißer <linux@weisser-ol.de>]

Hi!
Got a Problem importing students from a textfile
"first name;name;password;group" . Not only that 'password' only imports 
after modifying .../import.tpl.
I get the following:

> Warning: ldap_search() [function.ldap-search]: Search: Bad search filter in /usr/share/lwat/web/functions.php on line 409
>
> Warning: ldap_get_entries(): supplied argument is not a valid ldap result resource in /usr/share/lwat/web/functions.php on line 410

All groups have been createt before, modifikation on .../import.tpl
is undone, the error stays. And it's getting funny:
If i ignorier the warning, 'cause i don't know where to search any more,
usernames get generatet, with a similar errorwarning for line 6xx, and 
homedirectories $username are createt, with the mask $Vorname:$Nachname! 
But the groups $Nachname are neither found in lwat nor with vigr ???

Any clues?

Btw: Debian-Edu/Skolelinux 3.0, mainserver, latest updates/upgrades,
lwat 0.15-1etch1

readU
Frank