if you have a computer in your house with a DVDrom in it, have them networked, you can share the root of the DVDrom on the other computer with read/write access then open it on your other PC via My Network Places, locate the executable and install from there. It will take a little longer to install because of network transfer and such, but it wont be too bad
option2:
http://www.newegg.com/Product/Product.a ... 6827106028
17.99 with 5bux shipping
edit: its cheaper to make a dvd nowadays than it is to make a CD, and since its probably 2 cds worth of content, I wouldnt be suprised if they did make it dvd and assumed people would conform. Or they listed the PS2 version description, which would classify it as a dvd the