Some questions with spells

[Cloth Boy12]

I have a few questions regarding spells...

Shapechange: Is there anyway I can use the special abilities of the creatures I morph into? (Red Dragon Breath, Iron Golem Poison breath, etc.)

Time Stop: It seems like I only get two rounds of activity when I cast Time Stop instead of 1d4 + 1 rounds. I've used Time Stop at least 15-20 times and everytime I can only fire off two spells. Is the description inaccurate? SHould it be rewritten to say Duration: 2 rounds?

Weird: The description says that you make a Will save vs death and then if you succeed you make a fortitude save to see if you take damage. However, in my experiences, those who fail their will save but who make their fortitude save don't die. Shouldn't they die as soon as they fail their will save? CUrrently, Weird is an inferior to Wail of the Banshee because they get two saves instead of 1.

Delayed Blast Fireball: When I cast a DBF, I don't see any trigger zone. Also, when I lure a monster near the point where I cast my DBF, nothing happens. The only thing I can do wih DBF is use it like a regular fireball. Anyone else notice this?

Summon Creature: For the Summon Creatures that summon random elementals, I never get earth elementals, always water, air, fire. Is this intended?