For windows to read Apple OS X formatted disks try (for Windows) MacDrive.
To share files with Windows machines take a look at Macfuse.
To get past Leopard and windows connection flakiness read the first post in this Apple Discussion. Also try to put a Mac into a windows network keep the web site MacWindows in mind (this a very good site).
__________________ PowerMac G5 Dual 1.8(Rev A.), , 7 Gig RAM, Pioneer DVR-110, ATI X800XT, OS X 10.4.11 & 10.5.5, 23'' HD LCD Mac Book Pro Core 2 Duo 2.16Mhz, SuperDrive, ATI X1600, 2GB RAM, OS X 10.5.5 1TB Time Capsule 5g iPod 30Gig White |