Your FreeBSD slice setup looks correct but...it's on 4th partition. Also my 1st partition stars from 63 and yours from 1.
I guess you have 80GB SATA HDD with 4 primary partitions:
1. Linux 9.5GB (what Linux?)
2. Linux Swap 1.5GB
3. Linux 36GB (Debian?)
4. FreeBSD 30GB
What Linux do you have on 1st partition? Is it valuable for you?
How about to wipe out everything and start from scratch?
I would partition my 80GB HDD like this:
(sda1) 1st primary partition 20GB FreeBSD (main OS)
(sda2) 2nd primary partition 8GB *BSD (openbsd, netbsd, pcbsd, another freebsd... OS to try)
(sda3) 3rd EXTENDED partition 34GB that contains:
[INDENT]1st logical drive 2GB -Linux Swap
2nd logical drive 20GB -Debian (main OS)
3rd logical drive 6GB -Linux2 (any to try)
4th logical drive 6GB -Linux3 (any to try)[/INDENT]
(sda4) 4th Primary partition 18GB - Data (docs, home, music etc) It's also handy for sharing files between FreeBSD and Linuxes. Format - fat32. It should be last (slowest) partition on the disk because docs doesn't need a lot of read/write.
Linux boots fine from extended partition (even from the very last one), *bsd - prefers primary partition. Linux is more flexible: you can shrink and grow your logical drives inside the extended partition.
Linux swap partition is recommended to be 1st on Extended partition. All the Linuxes there can share this only swap.
So, I would obtain tiny Daniel's ZAP
utility that can erase first 64 sectors of HDD to wipe everything from there. It's not mandatory but it's better to start with "brand new" disk. I copy ZAP to DOS bootable floppy made in Widnows. It's also possible to zero everything with [CMD=" "]dd if=/dev/zero of=/dev/sda[/CMD] command under Parted Magic but I didn't try
I use Parted Magic
to partition disks. It also has other disk utilities. It cannot format to ufs but you don't need it at this point. Of course FreeBSD fdisk will also do the job.
Partition your disk so that FreeBSD will be on 1st primary partition (Debian won't benefit from that). Install FreeBSD first, choose A (automatic labeling) and choose option1 - Install FreeBSD boot manager. Install packages you want (xorg, gnome, kde...whatever). Boot to FreeBSD to be sure it was installed correctly. F1 must boot FreeBSD.
Next install Debian on 2nd logical drive of your extended partition (1st is linux swap) and replace FreeBSD boot manager with Debian's Grub2. Boot to Debian and configure grub2 from there to boot FreeBSD (as described).
If you want more Linuxes install them paying attention not to wipe Debian's grub from MBR (choose their grubs on their own /boot partitions. Ignore their grub2 warnings. Configure grub2 from Debian to boot other Linuxes.
Have fun (mandatory).