Sounds like you just need to some fittings to adapt your current hoses to the new pump. Most pools use 1.5" PVC, either hard PVC or flexible TigerFlex. A mistake made by pool installers all over is to treat TigerFlex as hose, and use internal fittings. This is guaranteed to leak. External Schedule 40 glue-on fittings, just like you use on the hard PVC, are correct. There are threaded adapters that will fit into your pump (be sure to use teflon tape for the threads). Some can be glued on to PVC. Others are good for going inside pool hoses (not the same as TigerFlex).

There are simple "double-male" adapters that will screw into the pump and leave you with external threads. A lot of this stuff is available at your local Home Depot/Lowes but also at pool stores.