Mod please move to help section
why ppl did not understand there is help section, last time I am replying to question which is posted in wrong section,
for 4gb+ pkg file you can transfer in two ways,
first Use FTP to transfer your pkg file in anywhere you want in dev_hdd0, I suggest that you crease new folder in GAMES > PKGS and place there
second way is you use NTFS support to transfer such large files, see my tut in tut section about that.
now when you transfer file into ps3 its time to lunch it,
open multiman > file manager > select pkg file and back to XMB now if you go to install pkg you can see your selected File
Thanks and please try to post in help section next time if you want to ask