Ya, i know there are other workarounds:
1. Sync the iPhone (with the app) to the pc that do not have the app, or
2. Copy the app(from the pc that have the app) and put into the new pc and
authorize it.
Both ways workable, just i want it more simpler, just download again with
my itunes. Well, guess i will continue to find solution for this approach. Worst case will try contact with Apple support.

Will keep you all posted if i have any news regarding this matter.
Thank you.
Added on April 25, 2010, 2:13 pmQUOTE(xrenoz @ Apr 25 2010, 01:53 PM)
My friend dl an apps for free then i use his acc to dl it again but now it cost money. The msg did appear...
We usually go for the FreeAppADay but sometime miss out some so we exchange each other apps...
If u scare about the charge again, try copy it from the computer
Hm, the message to ask you download for free, is it appear after this message "are you sure want to buy and download xyz app?" Your payment method will be charge...." or when u click on the app and it straight prompt you to download for free?
Thank you
This post has been edited by wyk85: Apr 25 2010, 02:13 PM