Pretty sure it's available in the xbox classics section. I haven't played a 360 in forever but last time I did it was available.
Nope, not on there.
^^Morrowind's min and rec specs:
Minimum system requirements:Windows ME/98 128 MB RAM; Windows XP/2000 256 MB RAM; 500 MHz Intel Pentium III, Celeron, or AMD Athlon processor; 8x CD/DVD-ROM Drive; 1 GB free hard disk space; Windows swapfile; DirectX 8.1 (included); 32MB Direct3D Compatible video card and DirectX 8.1 compatible driver; DirectX 8.1 compatible sound card; Keyboard; Mouse
Recommended:800 MHz or faster Intel Pentium III or AMD Athlon processor; 256 MB RAM; NVIDIA GeForce2 GTS, or ATI Radeon 7500 or faster video card.
Supported video card chipsets*:NVIDIA GeForce4; NVIDIA GeForce3; NVIDIA GeForce2; NVIDIA GeForce 256; NVIDIA TNT2; ATI Radeon 8500; ATI Radeon 7500; ATI Radeon 7200; ATI Radeon; ATI Rage 128; Matrox G550; Matrox G450; Matrox G400