SQL server does not exist or access is denied

[steve1_rm]

Hello

I am having trouble with my connection string on MSDE.The error message l keep on getting is
Sql server does not exist or access denied

The connections string l have tried are as follows:

Dim objConnection as New SqlClient.SqlConnection("Server = steves-pc; Database = keepfit; User ID = steves-pc\netsdk; Pwd =; trusted_ connection = false")

and l have also tried the following

Dim objConnection as New SqlClient.SqlConnection("Server = steves-pc; Database = keepfit; Trusted_Connection = True")

One question l have, is that l do l need to supply a password, as l don't know of any password that l can use.
Many thanks in advance
I don't have enterprise manager, is there another way to set up a ASPNET login, as l think that could be a problem

I have sent a attachment of my server explorer.

Steve