[Q] no storage left after WP7.7 installed

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http://forum.xda-developers.com – I followed Jacey Ooi's instruction and successfully installed WP7.8 (pdaimatejam ROM). However I found many functions do not work, such as connecting to WIFI. Checking the Setting -> About page, I can see the following: Name: HTC HD2 Model: HTC HD7 T9292 Carrier: pdaimatejam Software: Windows Phone 7.8 Total Storage: 15.59 MB Available storage: 0.00 MB I suspect the problem is with not having any available storage left. But I am not sure why. The storage numbers look very off to me. BTW, I tried several versions with pdaimatejam ROM (8835, 8858, 8862) all with the exact same (HowTos)