LTSpice libraries

Can anyone quickly tell me how to add a Variable Resistor , An LDR and a relay to the standard components which amazingly are not already there?

hi
If you are just starting with LTS I would recommend joining the free Yahoo/LTS user group.
https://groups.yahoo.com/neo/groups/LTspice/info

EDIT:
added a zip file

This other thread shows how to model an LDR. Varying resistance is intrinsic in LTSpice, you really dont need an "LDR component". You do need to know (from a data sheet, or from the maker) a Resistance vs illumination curve, either as an equation, or as a graph...