Ableton questions from a previous traktor user

[Stumpy]

They only work with Ableton 8. If you use Live 7, check Abletonlivedj.com forum for older revisions. Otherwise you just drag them onto channels.

[Anti-Held]

I do use ableton 8.1, but i can't find the Live Browser that Tarekith talks about in his manual.

[Anti-Held]

I also read on the ableton forum that you can set a minimum and maximum BPM. Where can I do this?

[Anti-Held]

Ok, all previous things solved, thanks for the help. But now:
New questions, sorry

This one may be asked more often, but I didn't find it again:
Sometimes when I mix a song in, it is completely out of sync with the other song playing at that moment. This can even happen when both numbers are originally 127 BPM and the master BPM is also 127. I don't know how to solve this, but I think I have heard of some feature of ableton where you can set the beatmarkers yourself, which will result in perfect mixes that are completely in sync all the time. Can someone please explain me how I can solve this and if this option is available and how it works?
Also: Is there a pause function in Ableton? If yes, where is it and how do I assign it to one button if its master pause and 2 buttons if it's pause for one deck?
And then the last question:
How do I map the Shift+Tab function to a button?
Thanks for helping!

[BentoSan]

http://www.youtube.com/watch?v=fCqX9veJSKY

[Anti-Held]

Ok, that's a good vid, but I can't get it to work on the number I try it on. The first seconds were already out of sync, so I set up a warping point at the point where the beat begins. That gets it in sync for about 5 secs. After that, it starts getting out of sync again and then I don't know how to get it in again. Maybe someone with the song I tried it on (Boys Noize-Jeffer (para one remix) can explain me how to do it.