I recently instaled antiX15 (I think it is great!). i would like to install new applications, (wine, playonlinux, winFF, pcsxr, qbittorrent, pingus, skype, teamviewer, okular, suite educativa gcompiz, tux paint, shutter, acetoneISO, simple screen recorder, etc... ) but i don't know where to find them.....please help me.

somethinfg else... I'm using ubuntu 14.04, 3 months ago and i have deb packages to install it with dpkg command without internet ... i can use it in antix15?

first of all ubuntu is not debian(antix), for new applications just fire up synaptic __{{emoticon}}__

I would avoid ubuntu packages in general in antiX/debian. there are significant library differences in the two os's, as well as directory structure differences. You may get lucky occasionally, but eventually something will break.

check out the meta-packageinstaller in the control center>system tab, as well as synaptic for general installations.

simplescreenrecorder is not available in the default repos at the moment, but vokoscreen and gtk-recordmydesktop are available.

you could enable the mx15 main repo in the synaptic options if you like. simplescreenrecorder is available there, and the packages *should* all work with antiX15. just disable it when you are done installing what you want.

i would like to install new applications, (wine, playonlinux, winFF, pcsxr, qbittorrent, pingus, skype, teamviewer, okular, suite educativa gcompiz, tux paint, shutter, acetoneISO, simple screen recorder, etc... )

Without intending to sound"harsh", I'll suggest that antix15 probably is not a good distro choice for you.
First of all, choosing a distro with wine preinstalled is probably advisable, b/c installing and setting up wine is PITA.
Second, because all the"stuffs" you intend to install isn't common to other users of this distro,"who ya gonna call?" when you need help with those applications?

Installing Okular will pull in a shitboatload of KDE dependencies. qBittorrent brings a raft of qt framework dependencies. Shutter brings gnome/gvfs dependencies...
The result will be a frankenstein, difficult to troubleshoot, and far-removed from the antix starting point.

I understand .... it could be dangerous try to install all the applications I usually have installed in Ubuntu 14.04, and I will not find to much help if i find troubles trying to install them.....

well ...
so all the secure software i could find (ofimatic, multimedia, games, etc ) is in synaptic... (with its repositories)

thank you

Like D.O. and skiddoo sated, trying to include Ubuntu debs in antiX15 is not a good idea. And Yes, IT WILL BREAK the entire setup. I have tried at various times to add ubuntu dep files to antiX and have fought with all the problems involved.

Find a distro that has most of what you want, and work from there.

If your system is powerful enough, and you really want to use antiX, you can run virtual machine for ubuntu when you need it, or vis versa -- antiX in VM.
This avoids Frankie-box and lets you have it all __{{emoticon}}__

Multi boot is another option.