Problems Pc will not come back to Vista

Some time ago I made dual boot to my Dell XPS M1210 with Vista Premium installed. Everything went straight on.
Today I tried to do the same to my doughters pc, acer Asoire 5610Z, with Vista Basic.

It had D partition, so I just started to install XP Professional to D. Everything went ok, but when I should do step 3, I missed and hit the Startup Repair button. After that I have not managed to get the pc back to Vista. I have tried to continue with the commands in "Command prompt". When I type the Bootrec.exe/fixMBR , the answer is "Operation suceeded" (translated from Norwegian OS). When I type the command

X:\Sources)Bootrec.exe/fixBoot

I get answer:
"Volumet inneholder ikke et kjent filsystem.
Kontroller at alle de nødvendige filsystemdriverne er lastet inn, og at volumet ikke er skadet."
Translated to english is something like:
"The volum do not have any known file system. Control that all necessary filsystemdrivers are loaded, and that the volum is not corrupt."

Can anyone help?