problems with natdin.bst bibtex style

[Till von Reumont]

hi
i have a problem using the natdin.bst (http://www.haw-hamburg.de/pers/Lorenzen/bibtex/) style for bibtex in lyx. everything seems pretty fine, but i get the following error messages in the console terminal window. maybe they are not so bad, but i dont know if it is too good when processing large documents? do i have to manually edit my latex preamble? currently i am using two simple commands in it:
\usepackage{cite}
\usepackage{bibgerm}
do i have to include more packages?
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This is BibTeX, Version 0.99c (Web2C 7.3.1)
The top-level auxiliary file: grosserversuch.aux
The style file: natdin.bst
or is already a type "wizard-defined" function name
---line 213 of file natdin.bst
: function {or
: }
skip is an unknown function---line 1087 of file natdin.bst
conference is already a type "wizard-defined" function name
---line 1116 of file natdin.bst
: function {conference
: } {proceedings}
Database file #1: /Users/tillvonreumont/Documents/Bibs/Bibliographie.bib
You can't pop an empty literal stack for entry goerne01
while executing---line 1515 of file natdin.bst
You can't pop an empty literal stack for entry zuckerwar01
while executing---line 1515 of file natdin.bst
You can't pop an empty literal stack for entry hausderjugend01
while executing---line 1515 of file natdin.bst
You can't pop an empty literal stack for entry dickreiter01
while executing---line 1515 of file natdin.bst
You can't pop an empty literal stack for entry dickreiter02
while executing---line 1515 of file natdin.bst
(There were 8 error messages)
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