What i have done have been good for me.
actually its this: I install win98 and then XP or 2K
Linux instalation its done when ever i like, the secret its on the MBR, microsoft in all its wisdom (cos they know more than you), they really need to take control over the MBR, win 98 does it; and then XP, but XP its designed to live peacefull with nother M$ OS, and yes he takes control over the MBR.
So the secret its to tell Linux in all its wisdom and good desing, (becose they have enough wisdom to give u choices unlike M$) to make the LILO to be installed on the same partion of Linux, NOT in the MBR. so if u make that partition active u will boot to him diectly cos he has every thing he does need. that means that Linux its only on his particion and he does NOT need of everyone else to help him (this its important) if his particion its active so does him.
then u have to make a special file, the detailed instruccions are in the "Linux+nt-loader" mini-Howto and actually the secret its the comand dd (someting like "dd if=/dev/hda2 of=/bootsect.lnx bs=512 count=1") and then u edit boot.ini to make a entry to this archive and all done, its all on that OLD Howto (cos its dated to september 1997 at least mine).
the good part its that the WinXp menu and lilo menu are conected one to the other so u can go back and forward with both. and since Linux its totally on its own partition u can have all the time u need to do it good, cos u only need to make the linux partition active and Linux will boot. and that can be done with any fdisk, even the badly MS Fdisk.
And you can install and reinstal win98 and XP as you need to; linux its on another place... and u can reinstall Linux the same way, windows its on another place too; and only u need to update the file you give to the NTloader.
The good part: its works Flawless, the best part no extra software, you only have to do its locate that howto and read it, but if you use linux you are always reading lots of stuff, so its nothing new.
P.S. work on Win NT4,2k,XP,95,98 (havent tried ME),
so: pick your combo!