MIUI-XJ can't use 2gb internal storage

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http://forum.xda-developers.com – I am using the miui-xj rom but I cant use the internal storage and I is a new member <10 post so I cant post this thread in ''development'':D.another thing is what the application can use the 2gb internal storage as 600mb memory(link2sd I am using only use external storage)?I don't want flash ''partition'' because that is dangerous sory for my english,very bad:D (HowTos)