>I may seem to ask a very trivial question, but what is the way of splitting
>a
> database into FE and BE?
There is a database splitter wizard. Tools->Database Utilities->database
splitter
(this is for a2002, and a2003). some earlier versions the location is
different.
> The other thing which I need to know is how can I garantee that the data
> is
> saved safely when two users enter the data simultaneously?
The above does not change if you split, or not split. When a user moves to
another record, or closes the form, the data is written to the file.
So, you don't need to be any more sure then you are now.
You can read up more on splitting here:
http://www.members.shaw.ca/AlbertKallal/Articles/split/index.htm

Signature
Albert D. Kallal (Access MVP)
Edmonton, Alberta Canada
pleaseNOOSpamKallal@msn.com
http://www.members.shaw.ca/AlbertKallal