A couple of options here IF you can find a good PC company that you can trust.
1:- get the drive "cloned onto a 40 gig drive.
Now you have a wroking copy that doesn't matter if it gets screwed.
2:- uprgade to win98SE a simple task ( if ouknow what you are doing)
3:- upgrade to win2K pro
Another option:-
Partition a 60 gig drive in two- 2 30 gig partitions.
Clone the drive again as in 1: onto the first partition. Make sure that the primary partition as set to active.( done when you FDISK the drive and format it in the system WITHOUT your old drive)
Make this your master drive and put your old drive aside for safe keeping.
Install EITHER win2Kpro or winXP onto the secondary partition.
You will now have a dual boot system, either win95 or the other ( W2K /XP)
now when you boot up, you will be given the choice of booting to either win95 ( your old system) or 2K/XP.
Now a couple of more options.
Install all your trading stuff into 2K/XP and any other stuff you may regularly use while trading.... Internet access etc etc etc. You can import email stuff from 95 to 2k/xp ( i think- at least you can from 98 to 2k/xp). Boot to 2k for trading, boot to 95 for everything else on your PC.
How does that sound?
Final option, do the above, but with a brand new box. An Athlon 1800 with the dog's doo dahs will set you back £300 ish.
You would now have a complete back up PC ( your old one) and a ripping new one. For the new pC, you only need 256 meg memory, almost any curent video is gonna be enough to do the job. Go up to 512 meg memory for some luxury.
Have fun