I created a credit memo from the invoice and used the collections "item" for the total invoice.  I then posted off the invoice using the "Collections" account.  Now the only way to see the invoice I posted is from the Chart or Account and clicking on the "Collections" account.  Is this correct?

We don't do our banking with QB.  We use it to tracking sales and purchases only. 

The chances of them paying these invoices are slim to none! Some are 3 years old already.