The following should help.
If you not sure of the connection string, choose Data Environment in VB and then add a connection then select SQL Simple Provider and then choose your DB then click properties of the connection and copy the connection string.
conn.Open "Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=Employee;Data Source=TECHNO10"
conn.BeginTrans
FirstName = "Delton"
LastName =Phill"
Department = "Technology"
NewExtNo = "6342"
Comments = "Delton is employed to the company as a programmer"
With comm
Set .ActiveConnection = conn
.CommandType = adCmdStoredProc
.CommandText = "INSERTINFO"
.Parameters.Refresh
.Parameters("@chFirstName"

.Value = FirstName
.Parameters("@chFirstName"

.Direction = adParamInput
.Parameters("@chLastName"

.Value = LastName
.Parameters("@chLastName"

.Direction = adParamInput
.Parameters("@chDepartment"

.Value = Department
.Parameters("@chDepartment"

.Direction = adParamInput
.Parameters("@chNewExtNo"

.Value = NewExtNo
.Parameters("@chNewExtNo"

.Direction = adParamInput
.Parameters("@chComments"

.Value = Comments
.Parameters("@chComments"

.Direction = adParamInput
.Execute
End With
conn.CommitTrans
conn.Close
Delton Phillips.
deltonphillips@hotmail.com