How many times i should say this is NOT ubuntu and aptget do not update my programs:
root@bt:~# apt-get update
Hit http://***
Hit http://***
Hit http://***
Hit http://***
Hit http://***
Hit http://***
Hit http://***
Hit http://***
Reading package lists... Done
root@bt:~# apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages have been kept back:
openvas-client openvas-libraries openvas-menu ***
***-common
0 upgraded, 0 newly installed, 0 to remove and 5 not upgraded.
And this is NOT problem.
What exactly i need to do?
Don't be obnoxious - you directly said that you use Ubuntu 8.10, then you said it's not completely ubuntu, then you made a post that barely made sense at all. You are not understood because you are not making yourself understandable - that's your problem, not everyone else's.
You have not clarified whether you use Ubuntu with your own software installed or a derivative (e.g. Kubuntu, although Kubuntu would be equally unlikely to ship an utterly crippled SDL_Image). If you are using Ubuntu with your own installations of software, at some stage you have overwritten your SDL_Image libraries with a version compiled without PNG support. You will need to correct this by reinstalling the original Ubuntu SDL_Image package or compiling a new version that supports PNGs - if you are unwilling to do the former then you should be expected to be capable of the latter. If you are using someone else's derivative of Ubuntu, you should make them aware that they have broken SDL_Image and ask them for a fix.
Dwarf Fortress is working entirely correctly - it is not remotely reasonable or correct for a distribution's SDL_Image to be compiled without PNG support.
edit: twisted wordwrong