Have you got access to ghost???
What you may want to do is ghost it to an image on the new HDD in DOS mode...
Then use image viewer to selct the data you want...jetison the rest...after a period of grace.
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Consider also that your old disk is formatted with FAT16...were you using Win95?
So, I would suggest also getting hold of a partitioning utility and use to to change the file system from whatever it is to FAT32...
NB:I may have not said the right things with the file systems...but I do not know all the of the details of your system...you'll need to write more there.
There are finally some disaster recovery products available on the market...they are very expensive...but make startling promises...ie recovery of data from computers in flooded offices etc....so you may want to check it out...:
http://www.ontrack.com/
Rohan