Wow. Buddy ... don't go crazy. 3 systems, 2 laptops.
I still don't understand much of what you're trying to do.
Maybe yes.
The HP 530 laptop is an older generation computer. On it you can possibly install XP with SP3, but it's already a system without much future. Maybe look around for some Linux distribution for him.
In this model in the BIOS there is probably an option to choose between IDE and AHCI mode for disks, but it may be under a different name. Read about it. I also recommend this topic
https://www.elektroda.pl/rtvforum/topic900295.html Error code 0x8007045d when installing Win7 refers generally to I / O devices. It may be "badly prepared installation media" or the system may not support such hardware, even though it may be compatible with 32-bit architecture.
Acer Travelmate 5744 is a newer generation computer and you can easily run Win 7 64 bit on it. Such is most often installed by the manufacturer. Win XP on this do not even try to install or transfer the old disk to it, because it is a newer generation ... although SATA.