Your trying on the r800x right?
If so flash 100% stock 2.3.3 load it root it install cwm reboot enter recovery wipe dalvik and cache. Flash the theme and wipe dalvik and cache again see if that helps it any. Also some if the themes won't work because of missing .PNG imgs inside of the framework-res.apk the Samsung theme and the HTC theme were the two w was able to flash with out bootloops
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