Aspergers memory issues, advice for home schooler

Hello all,

I am Home schooling my seven year old son who has suspected Aspergers.  He is doing so well in all aspects of schooling that i thought i would consentrate a bit more on social aspects.  I decided to try ognitive learning and commence with feelings.  We started a "HAPPY BOOK" as recommended in a few books to ease him in to feelings. 

Well we drew a blank after Mum and dad as things that make him happy, (atleast he remembered us)!  He haslots of loves that make him happy but could recall none in the discussion and wanted alot of prompting.  On talking afterwards with my son i asked ifhe could exlain why he found the task so difficult, he said " he can only remember things  he is doing that second  and no more"  it was a real eye opener for me, i knew he had a poor working memory and is a visual learner, i can see how this can affect him in so many different ways.

How can i improve this aspect, should i have used visual prompts, but i wanted it to be his view and not all my prompting , how can we discuss feelings when he is in the here and now and unable to recall much more?  He has a fantastic long term memory.  I find it difficult to adapt for teacher technigues.

Help, any advice is welcome.

Many thanks

 Puffin