You have joined Talkshoe and you have set your 10-digit PIN.
Download X-Lite for Mac or Windows and install it as you would any program.
Set the SIP settings:

You need to put ideasip.com in the "domain" field. The others can be anything. Make sure "register" is unchecked as in the image and that "target domain" is selected. Click "Apply"


Now you are going to add a contact to phone the Talkshoe server and enter our conference directly:
Put Turkers Talk and anything you want in the tops fields, they don't matter at all.
Under "Contact methods", Select "softphone on the left and enter the sip numner on the right:
Here is the first part of the SIP number : 7463 # 22603 #
followed by your PIN (in the example image, it's 0123456789)
followed by the rest of the sip number @proxy.ideasip.com
SIP numbers (called URI) look like email addresses. Example: talkshoe@vuc.onsip.com is a SIP URI.
Another tutorial here


