First Task
Medium
Second Task
Medium, Small, Small, Medium
Third Task
Big, Medium, Medium, Small, Medium
http://www.gamefaqs.com/portable/ds/game/959019.html
here is a site with faqs and guides.
in the snow realm
It's in the forest temple.
It is a whip not a rope and it is in the sea temple
Try here: http://www.zeldadungeon.net/Zelda13-spirit-tracks-walkthrough-10.php
In the Fire Temple after you defeat heatoise.
i think u get it at the forest temple.
look on Zelda dungeons they have walkthroughs for every "legend of Zelda" game out there
This will answer evrything for you: http://www.zeldadungeon.net/Zelda13-spirit-tracks-walkthrough-06.php
It's in the grandpa goron house.
beat the the dark temple floor
in the temple sanctuary for each land
iv got and completed spirit tracks but you will have to define "the orb" if you mean the sand wand, you get that after getting to the dune temple