error (not conect to sql server)

[flodi]

hi to all
i create and finish my program using vb.net 2005 with database sql server2005
i did a setup package including .net fram and sql server coz other pc's which i want to install my prog in it doesn't have sql server in it.
thee setup complete sucssefully but the problem is
my programe start with a login form and that form read from a table in my database
so after i install my program in other pc and try to enter by write a username and password i already use it in my pc when i creat the pro it gives me an error that i can't reach to the database and its not able to connect to remot computer!!!!!!!
how can i solve this?is that mean that the program is working without conecting to the database?
is my datab ase included in my setup package coz it had data and my programe open and work with that data?
what if i have a server and that server has sql server 2000 is that will affect my program?
is it better to install my program in to the server then connect other pc's to the network?
sorry to much question's
best wishe's to every body

 

[flodi]

any idea or answer