Alright, i have subscribed to this service this month and i'm an extremely beginner when it comes to it.
I have a shitty phone Nokia 3220 (What softwares can i use for it, or themes :S)

Next if i want to upload pics and sounds to the net so i can download it on my pc, is there a service like yousendit.com or megaupload.com specialized for wap?!
I doubt it because it would be raping ur bandwidth, usually you would need GPRS. Btw what OS does your phone take s60?
zedge.no lets you upload your mobile stuff
aslo, any free image hosting service would do (just enter the url in your mobile's browser and download it)

note: read about Opera mini , for a cool phone browser
Honestly Mahdoum i need a book like WAP For Dummies :P I don't know if it's symbian or something..... i'll try the above link Samer thanks!