Wow, great response by Nikita!
My only other thought would be to try a pediatric psychiatrist as they probably have more experience dealing with Autism.
Yes, sounds a lot like this. The signs that could differentiate Asperger from PDD or autism is that he is very smart, speaks good, but his weak point is fixation on a theme - does he colect any specific things? I found only this: "he would never play with any kids unless they have the same interests as him and he prefers older kids if he does play".
"He does get stuck on things and objects but when hes bored cause he has mastered something he moves on and gets stuck on something else" - this is not real fixation, any person could have this, for ex. me and you - look how many actors funs outside.
Does he like any specific books (I mean TOO much)? Does he range his toys or objects ina perfect order and has tantrums when somebody replaced them? And, sure, he has difficulty with social contacts, but this is specific to all autism-like disorders.
All the rest things could come from Sensory problems - check with SPD Foundation site of different forms and therapies (you already mentioned he has sensory processing problems):
"- head banging
- speech therapy (could be for his speach delay, which could be a result of azuditive discimination or postural disorders or dyspraxia)since the age of two..
- He has always been clumsy and has a hard time learning to tie his shoes or ride a bike..
- He use to not give eye contact till the age of four but now that he does he doesn't keep it, he will give eye contact but not for very long and can not stand it when someone is staring at him..
- he is struggling in reading (not dyslexia? he does not invert letters order?) and understanding what he reads.
- He acts very much like a two to three year old when hes upset cause of his tantrums.. "
"they don't agree cause all Aspergers don't have speech delays and they said that they never share things "
Absolutely not true! I personelly knew several which started to speak at 4!!!
"but I think it's possible that he is and that his speech is due set to all the ear infections hes had and the fact that it does run on his fathers side.. "
or sensory discriminatino disorder which he passed because of his high IQ.
"He invades their space and is very blunt and acts differently and kids don't know how to react to him."
This is the result of Dyspraxia, very common for all Autism-like disorders
"has always had a hard time reading others emotions or body language."
Has poor own body image (needs motor exercises) and poor visual discrimination (very might form, but anyway)
"I have always had to be blunt just like he is but when it comes to explaining feelings, he don't get it."
There is a therapy called Social Stories.
So, it is definitely 1 from what you have mentioned. You can do your own check.
http://www.dsm5.org/ProposedRevisions/Pages/InfancyChildhoodAdolescence.aspx
It's newx and not valid till 2012, but Asperger would go to category "PDD - autism"
You might find that to be considered as having this disorder you should present signs of
"Marked deficits in nonverbal and verbal communication used for social interaction".
They do not say which deficits, by the way - lack of reciprocal resonse in that case could be a sign.
http://en.wikipedia.org/wiki/Asperger_syndrome
"It differs from other autism spectrum disorders by its relative preservation of linguistic and cognitive development. Although not required for diagnosis, physical clumsiness and atypical use of language are frequently reported"
"Most individuals improve over time, but difficulties with communication, social adjustment and independent living continue into adulthood"
See yourself what is SA for now:
http://www.autreat.com/dsm4-aspergers.html
As I understood, your child present 3 items from 1 (when only 2 would be required already to confirm diagnostics)
But the only 1 thing why they refused you SA -
"(IV) There is no clinically significant general delay in language (E.G. single words used by age 2 years, communicative phrases used by age 3 years)"
And the criteria meets PDD-autism as well. So, read carefully and check all signs!