How to use auto-increment and search option for MS Access DB

Dear All,

           I have configured our invoice in Adobe Livecycle and connected it to MS Acess 2007 as per http://forms.stefcameron.com/2006/09/18/connecting-a-form-to-a-database/.

All is working fine, I can insert, retrieve data from DB to invoice and vice versa.

Now I want few things to be implemented on our invoice.

1. When ever I open our invoice, it populate the first entry from DB, Is it possible to populate the last entry ?
2. Auto increment invoice number from MS Access DB every time we open our invoice after save.
3. How to implement search option from DB for invoice number ?

Please let me know if someone can provide me help on my scenario, so that I can share more stuff related to invoice and DB.

Look forward to hearing soon from experts and other team members.

Thanks & Regards

Riyad...