If the bedded pack is surrounded by cement walls, would it be considered solid storage versus a pile of bedded pack with open aisles around it?

This situation would not be considered solid storage. Bedded pack has different emissions level than solid storage in part because urine and additional bedding materials are added over time.

If the solids and liquids are utilized differently after manure goes through an anaerobic digester, how would that be designated in the section about manure management systems for effluent?

If a farm is conducting solid-liquid separation after the anaerobic digester, they can select “solid liquid separation” for the effluent, then indicate the separation efficiency, how the solids are managed, and how the liquid is managed.