The best trick is to crack open the control box and have a look at what drivers they have in there and retrofit with a new control. You will not be able to really accomplish much good with that old motion control system.
By the way, that is actually a very nice machine you have there. It was a simple design, but pretty rigid with that solid table top. I cut a lot of stuff on a 2448 !
Back in about '95-'96, I retro'd a series one 2448 machine (had 3hp Perske on it) so we could run G-code (it was hpgl) to Ah-ha ! and then finally to Flashcut in '97 where it finally ran incredibly well. That machine still has Flashcut on it today and running well....... If I recall, the engraver models had a lower height gantry........
I personally have a 1624 engraver that I think was a series 2 control before I raided it, and it has good ole IMS483 drives in it. My desktop looking cabinet with the slant front and tactic layered buttons on it had their outdated motion control board on a separate layer in the box, and the drivers where all tied together on the input side with a PC board with pins sticking into the drives.
Because you can get all the wiring data you need for the IMS Drivers, it's real easy to just yank their control board, leave the original power supply in place as well as all the motor wiring and just wire the motion level input of the drivers to a new control. Mine is running the best of course... FLASHCUT !!! :-)
I just put a new DB25 on the back of the cabinet.... inside the plug is wired to the drivers and outside, I run my motion data into it from my control. Your control cabinet probably has the variable speed supply source for the engraving spindle too.... that all stays in place.
Regards your V-Pro.... I'm very familiar with it as well. Its a private label version of Engravelab / Signlab which on the surface, is a good thing. Those older versions of signlab were rock solid and STILL do a lot of things a bunch of the knuckleheads who design "new" and "better" software still fail to do !
Nonetheless, one concern is to look into your "drivers" section and see what drivers are there. SOME of the V-Pro versions were sold with passcodes that ONLY RAN VISION machines and Vision machine drivers. If you called Vision with your dongle number (you have a parallel port dongle or USB dongle?), they should be able to still tell you what you have to work with, and whether you will be able to create G-code with it. I've got two copies of what was once V-Pro, but fanagled both versions into Signlab directly after upgrading.
V-Pro 6 is equivalent to Signlab 5, which was a good version. I dont believe it runs on anything newer than XP though. Signlab went off the rails with their versions 6 and 7..... they broke a lot of things for us engraver guys while they chased the RIP world. v7.1 got better, but it was where I drew the line. I got tired of reminding them to fix what they broke WHILE sending upgrade money (these software developers can be ruthless) I still mostly use my old v5.