FreeGameDev

Can you tell me how can i finish that level?

You have to stay alive for 60 seconds. It's doable but not very rewarding- I think I cheated my way past the first time but came back and finished it later.

Have any new pack of levels? because without Hume Rainbow Cave i finish everything with old version.

I'm not sure what you mean by "old version" but all of the levels that I know of can be installed through a single add-on (as of JAN2013):

http://www.mediafire.com/download.php?m1174cducz26pvr

Just put the .zip file in either your supertux2 directory or the data directory (leave it compressed). The only exception of note is rubberduck's levels:

http://platen-software.de/sebastian/supertux-rubberduck.tar.gz

which will be added soon. Aside from these, I am unaware of any other levels.

LMH {l Wrote}:which will be added soon

where added? addons?

rubberduck {l Wrote}:where added? addons?

Yes, I meant to say I was to include those levels as an add-on. Which by the way, has now been done.