Linux LVM 100% full?

Linux LVM 100% full?

I'm still stuck with a barely operating install. Can anyone give me a hint where I can start looking? I've been seaching forums and google for two weeks now, and am empty-handed. Perhaps this isn't the right place to ask this, but there seem to be people here that have tried the same fix...has noone else had this 100% full / partition after the fix?

I don't even understand what these numbers mean, but here's some data:
sfdisk gives the following:

[root@localhost ~]# sfdisk -d /dev/hdb
# partition table of /dev/hdb
unit: sectors

/dev/hdb1 : start= 63, size= 205002, Id=83, bootable
/dev/hdb2 : start= 205065, size= 12389895, Id=8e
/dev/hdb3 : start= 0, size= 0, Id= 0
/dev/hdb4 : start= 0, size= 0, Id= 0
[root@localhost ~]#

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here's my df results:
[root@localhost ~]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
4031680 3968824 0 100% /
/dev/hdb1 99250 12189 81936 13% /boot
none 768584 0 768584 0% /dev/shm
/dev/hda6 713448 704104 9344 99% /media/hda6
/dev/hda7 38337728 13344864 24992864 35% /media/hda7
/dev/hdc 716308 716308 0 100% /media/cdrecorder
[root@localhost ~]# sfdisk -d /dev/hdb
# partition table of /dev/hdb
unit: sectors

/dev/hdb1 : start= 63, size= 205002, Id=83, bootable
/dev/hdb2 : start= 205065, size= 12389895, Id=8e
/dev/hdb3 : start= 0, size= 0, Id= 0
/dev/hdb4 : start= 0, size= 0, Id= 0
[root@localhost ~]#

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and here's fdisk:

Disk /dev/hdb: 6448 MB, 6448619520 bytes
15 heads, 63 sectors/track, 13328 cylinders
Units = cylinders of 945 * 512 = 483840 bytes

Device Boot Start End Blocks Id System
/dev/hdb1 * 1 217 102501 83 Linux
/dev/hdb2 218 13328 6194947+ 8e Linux LVM
[root@localhost ~]#

Thanks for ANY insight!!!

Mike