[Koha] MARC tag structure

[Suzanne Gilbert]

Hello,

We have been using various versions of koha for about 2 years.  Each 
time our computer person would put the updated version on the library 
computer, it has been a good thing...it has made my job easier.  That is 
until this latest version (2.0).  I am so confused and frustrated, I'm 
ready to scrape the whole thing and go back to the good old days of 
paper and pencil.
I am not a librarian, but know the dewey decimal system and how to run a 
library, in general.  I am starting my 6th year as the librarian at a 
small  ( just over 100 students) K-8 school.  When I started here, the 
library was computerized using a system by the Follette Company.  It was 
pretty straight forward and the previous librarian taught me every thing 
I would need to know (so I thought).
All the previous versions of koha had everything our library needed.  
This new version is giving me way too much information.  Is there a 
version for people who are not really librarians and don't need to set 
tag fields, etc. ? 
If not, here is where I am stuck... In PARAMETERS, I went to MARC tag 
structure.  Clicking on MARC tag structure, it took me to the MARC tag 
structure admin.  Across the top of that page it has:
Tag Lib   Repeatable  Mandatory  Authorized Value  Subfields  Edit  Delete.
What does REPEATABLE and MANDATORY mean?  Under Repeatable and Mandatory 
, for each tag listed it has YES or NO.  Are these Repeatable and 
Mandatory columes pre-set by the koha people?  Should I change them or 
leave them alone?
Why the heck am I being put through all this trouble when the last 
version was filling all the needs of our small library?  I loved the way 
it was set up when I was doing Original Cataloging for a book.  It was 
so easy and fast.  I planned to put all the non-fiction books on the 
koha system computer over the summer and I haven't been able to get 
anything accomplished.
Thanks for letting me rant.  If I can get past this Repeatable and 
Mandatory section, maybe I will be able to figure out the rest of it.

Thank you,

Suzanne Gilbert
IHM School
P.S.  I used to be on the koha mailing list.  I haven't received any 
messages since early July.  I'm not sure if this is the correct e-mail 
address to which I should send this plea.  If not, please forward this 
message to the proper address.