partitioning woes

I have my HD partitioned with System Commander from Avonquest. I have been having trouble with SC and want to replace it with Easus Partition Manager.
I did the following steps:
Backed up the entire HD
(SC messes with the MBR in a big way)
Deleted SC from the Windows Vista partition.
Shut down the system.
Started up system and Windows Vista would not boot. At this point it appears that I am stuck with SC. If I try to run Easus on top of SC I
have no idea if this would work. Other than that it would
entail a complete rebuild of 2 partitions which I
would like to avoid if possible. Scratching head.....

 

You have to repair the bootloader in order to get vista to boot. All you need is your vista installation dvd to run the repair.

http://neosmart.net/wiki/display/EBCD/Recovering the Vista Bootloader from the DVD

 

Thank you very much jonyjoe81.
Easybcd worked like a charm. I am now rid of System Commander. I have installed a partitioning program called "Easus Partition Manager". It looks and will probably work about the same as SC. However, there is no dual boot function in the program.
How, Where can I solve the Dual Boot Problem?
This was a function that was included in SC. At
startup you were able to select any partition.

 

I'm going back to SC.
Reason, Yes I found a decent partition manager that is free BUT It doesn't contain booting capabilities. So what good is it if you can't change partitions on the fly? My only problem with SC is their bad service otherwise the program seems to work and has booting capabilities. The booting programs that I found are NOT free.
So I am gaining nothing by changing other than experience.