Not exactly sure what you are asking.
First off, Oldversion does not carry Mac Software, this is explained in the FAQ's on the main site. So do not expect to see Mac software here. There is hundreds of sites for Mac software already. So whatever you are looking for you can find most likely with some good searching.
ASking what software is for a mac. can be a tricky question. Not really as simple as for the PC.
What processor do you have? is it a 68k, PPC? or other?
What OS are you running?
is the Apple connected to the net already? you are best to download the software via the mac, than via a PC, due to the PC's inability to download the Mac software correctly if it was not compressed into a .sit, .hqx or other format.
there exists 2 forks for a Mac file; a resource fork, and a data fork.
PC's will only get one, and skip the other.
So it's best to download most of your software with the Mac.
If you have to download the software to the PC, make sure they are comrpessed, you can copy it to a PC formatted floppy, the Mac will understand the PC format, - but the PC will not understand the apple format.
If you must read a Mac formatted floppy on a PC, use the program called HFVexplorer, it will help out alot.
whatever software you are looking for, you will be beter helped on a Mac forum, since this is - as the sites FAQ's states, a PC software site.
you can try the list of mac software sites to help you possibly find what you are looking for.
http://w3.trib.com/~dwood/software.shtml