Blight will need to go into the PC's inventory so make sure you have an open slot for him. Also, you have to talk to him before using the scroll. Let he know you found it. Then use it on him.
Rurik needed an updated dialog file and script. I think I posted both here. You have to reinstall the game for them to work. If Rurik is in the party, he must have enough empty inventory slots for everything to work. Otherwise, he may drop items you need. This isn't a problem for the non-joining Rurik, only if he is in the party.
Update - Found the problem. The scroll casts spell SPIN301.SPL but for some reason, the install file doesn't copy this over to the override folder like it used to. I can't think of a reason for why I would have removed it. Anyways, go into the \Classics050\SPL folder and copy that SPL file into your override. That should make the scroll work again.
Edited by Sir BillyBob, 02 August 2009 - 09:59 AM.
Update