承蒙几位大侠的鞭策：http://bbs.wenxuecity.com/computer/194737.html决定重新审视一下。找到合适的DSDT就可以启动了。
刚才写的冲掉了，简化如下：
Thinkpad T60 wide screen 1600x1050
2GHz Core2Duo, 2GB
ATI X1400
Intel a/b/g/n 1000Base T
1) buy a Snow Leopard DVD
2) download iATKOs V7 Leopard
3) install iATKOS V7 and adding patches for display: http://www.insanelymac.com/forum/index.php?showtopic=196083
4) Install Snow Leopard with direct call for installation in Terminal: http://www.insanelymac.com/forum/index.php?showtopic=87574 also install the bootloader!
5) copy /Extra from this: http://forum.thinkpads.com/viewtopic.php?f=32&t=85344
6) follow here to install patches: http://forum.thinkpads.com/viewtopic.php?f=32&t=86621
7) Snow Leopard should start now, make a backup and try all above patches
Enjoy.
Within step 4), one need to increase the maximum openable files with diskutil. Forgot the link, can search the error when met. The error is stopped at installing a HP driver, but in fact it opens too many files. The system files are caped at 12800 or so, and I increased to 30,000.
BTW, I think I've put in all the required steps ...