Hi,
no fixing is needed, this excel contains all you need to properly configure the pad, it has same info as MPC5744P Pin muxing table.

the usage of given register number depends on SIUL structure definition in device peripheral header file.
There could be MSCR[1024] defined but most often MSCR[512] followed by IMCR[512]. In this case you need subtract 512 from given number, e.g.
SIUL.IMCR[525-512] = 2; // connect eMIOS0_ch13 input with pad PA[0]
BR, Petr