Yes thats exactly what happened to me.
No cab installs of any kind worked, so I decided to hack the manilaFull xml file.
I would suggest anyone who likes and wants to stay on official new Sprint rom, to try the "Sprint Lovers" rom because it is basically the same but tweaked better and has the sprint tabs.
Also the cabs may work but I havent tried.
http://forum.ppcgeeks.com/showthread.php?t=115405