Methods to download assets from Internet in Air for IOS

Dear Friends,

Greetings! kindly advice me the ways and methods to download assets (swf files) from internet when running the app first time in IPAD.

I tried to write files in to IPAD using write bytes (byte array). iam opening filestream in write mode.

i.e.

fileStream.writeBytes(data_val, 0, data_val.length);

it is not allowing the script (AS3) to copy in to IPAD. Pls suggest me what are all other methods to download assets(swf files) from internet.

Thanks in advance,

Thanks and Regards,

Syed Abdul Rahim