Use the Radio buttons. Set one to yes and one to no.

use this if condition:

<if condition="$post['fieldXX'] == 'yes'">

Abe,

This hack is exactly what I need, but I don't want it to say "Thanks" but rather something like "I Installed" -- how many things will I have to change (I can change the button easily) so it doesn't say "Thanks!" And can you point me to all the things?

1) You can chenge the button.

2) You can edit the phrases.

Not hard at all to do.

Got a question about the postbit

It says "Thanks" x
Then right below it says
"Has been thanked x times in x posts".
Is the first "Thanks" how many thanks the person has given out?

The first thanks is like posts. Just like posts shows the amout of posts a user posted, thanks shows how many thanks a user gave.

the button didn't show for me ?

Did you look at some-one elses post or your own? It wont show on your own post.

Greetings, Abe1. First of all, thank You for creating and constantly updating this wonderful hack!

I have couple of questions...
As far as i understood, reputation points given by "thanks" are separated from usergroup reputation premissions, ie: if user, who is not premitted tho add reputation points, press "thanks" button, author of thanked post will still get RP... Is that right?
When i enable x RP per "thanks" feature, users with lots of thanks still have no RP. Only "thanks" maded after enabling the feature are counted. How can i convert all existing users' thanks to reputation points?

You can't just do this. You would have to use the count and give rep points and reasons. I can't realy help you with this.

Mybe some sql query can handle this? eg, if i want users to gain 1 RP per "thanks" then run some query that will make user's "thanks" amount = to user's RP*1?