You're familiar with IRC? First of al, you should be sure that your HTS account is linked to your IRC nick. Then, join channel #htb and you will find moo there, who will give you further instructions. Type !htb to start the missions.

The layout is overkill - phpbb's default layout was much better than the current one. I totally agree. It doesn't read very great and the new posts buttons are a bit hard to see. The complete style is indeed overkill. I also prefered the previous lay-out, how unprofessional it might have looked, it...

Or the mission is down. So if you want to know for sure; just say which challenge you're trying to finish and others, wou already have completed it and know fur sure how to do it, can check if it works. If not, the challenge could be down. If it works for them, you've got the wrong password.

A very small visit to it's website, tells me there is indeed a JTR version for OS X. Just check the website: http://www.openwall.com/john/ I see JTR Pro1.7.2 for OS X, but that's about the only one I can find in 30 seconds. If you search some longer, you'll probably find more releases, o...

There are lots of different fields in the hacking world, but since you're posting in the Application forums, I think you ought to know that the 2 most basic programs needed with app cracking, are a Hex Editor and a basic Debugger. A very popular debugger is OllyDbg; you'll find it with google. Then ...

I think KevinFTW is talking about stopping between missions. can i, when i come back still start at the mission where i stopped? If you stop after a certain mission and you delete your cookies, you can start at the next mission if you come online again. The information whether you've completed some ...

Are you sure it's not larger than 90px*90px and the total size is not larger than 6.00 kB?
Perhaps the avatar is blocked, because the image you specify is too large.