Mail Search and gMail

[emx]

there is an app in cydia called mail search. very simple keyword searcher within the email. i have a problem with it tho: once i could search in gmail's "all mail" folder, and havent been able to do that again. now, for example it searches within my outgoing mails, and i have no clue where i could set this.
any ideas? or any other app which could search in gmails all mail folder?