FIR Filter migration v9.1 to v10.1

I have a design with a FIR Filter megawizard function (original FIR compiler; not vII). I upgraded to v10.1 Quartus from v9.1. I can't edit the function to make changes. The v10.1 FIR megawizard doesn't recognize the v9.1 file as a valid megawizard file. I can edit it with v9.1 Quartus, though.

The design compiles fine inside v10.1. However, when I try to export the RTL to Modelsim, the v9.1 library is missing. My guess is that the library paths to v9.1 aren't correct anymore after installing v10.1

# ** Error: C:/.../Filter/filter_ast.vhd(32): Library auk_dspip_lib not found.

# ** Error: C:/.../Filter/filter_ast.vhd(33): (vcom-1136) Unknown identifier "auk_dspip_lib".

Any thoughts as to how to edit the v9.1 file using v10.1 software?

Any thoughts as to how to get the libraries straightened out?