Guys please help me 2 computers connections Fails!

SO where do i begin, i just want to have simple connection with my 2 computers.
in my netwerk connections i see the names of the 2 computers i have thats no problem, but when i want to look in my computer who is connected to the other it says u dont have permission to go in to the second computer, now i searched and searched on google forums, but no one can tell me how to fix it, i shared maps with all permissions to second computers every persission u can put on to share i did, nothing works, now i run 2X windows 7 premium 64bit i am really out of options, there many many people with the same problem, i really need a noobish explaining with some page to vieuw how u guys do this... explaine me verry good please how i can do this am not retarded but i had win xp i never had problems win7 always could connect ever, or do i have wrong win7 premium not good? please someone help me thanks ........

i fixed problem i can see now in my second computer but i cant stream from computer one to computer 2 is there any program so i can see my desktop from computer 2 in my computer one?