If you're on Windows you may use 7zip to extract the blk0001.dat file to %APPDATA%\SummerCoinV2\
I think the blockchain files are not compatible accross different OSes
You'd better get a blockchain from a linux machine to another linux machine and ditto for windows.
32 and 64bit windows blockchains are interchangeable however. Or at least that worked for me
Actually they are! I tried several times and used linux blockchain for ms and reverse. Works like a charm
If you need something, just post here . I can also upload another chain data. But first try the link above!
Thnx and merry Xmas to all of you!