For the spell to summon Alix, here's what I would do for the script to start:
CODE
scn alixSummonSpellScript
begin scriptEffectStart
<Alix's EdID here>.moveto Player 20, 0, 0
end
Alix's EdID (Editor ID) is found by opening his reference data box in the CS (double-click on him in the render window) I would suggest setting it to AlixMouseREF or something similar, so it's easy to remember.
Compile this script as a Spell Effect script, and attach it to a custom spell set to use the Creature Summon visual effect.