I'm not sure what kind of link you want. I don't think there are much on
C# with MSDE, but pretty much everything related to C# and MS Sql Server
2000 will work in MSDE with limitations on number of users etc.
Also download the Northwind and pubs databases (can be installed with
osql).
If you have Visual Studio .Net you can attach a database with the Server
Explorer (once MSDE is installed). You can then use the Server Explorer
to create tables.
For information on how to connect to databases this page is helpful:
Bear in mind that if you use C# 2005, you've got to use SQL Server 2005. 2003
of one isn't compatible with 2005 of the other! This is because 2003 uses
SQLOLEDB, whereas 2005 uses SQLNCLI (SQL native client).