ok, i did a stupid thing today, I kinda installed Gentoo linux on my PC with the following partitions, 32M for boot, 512M for swap, and the rest (80 GB - 544 MB what ever that is) for the base drive.

Forgetting all about wanting Windows still, I didn't leave a partition for Windows. Now i heard a thing about the abiility to resize the partition size in Linux. So if someone tell me how to take the roughly 79.25 GB partition, and shrink it to 25 GB, so I can have a partition for windows.

Now the whole point of me asking this is, no formatting the linux drives, just resizing the one, so can anybody tell me how????

Most distros have parted--likely Gentoo will, tho I haven't used it. You may also have qtparted.

From the parted man page:

parted is a disk partitioning and partition resizing program. It
allows you to create, destroy, resize, move and copy ext2, ext3, linux-
swap, FAT and FAT32 partitions. This is useful for creating space for
new operating systems, reorganising disk usage, and copying data to new
hard disks.

if you have not configure much yet, it might be easier to start over. installl windows then install Gentoo. It is a lot easier the second time.