I'm new here and wanted to contribute to projects. Therefore, I've attached different projects to 3 different computers but under one same profile. One project that all computers shared was the World Community Grid. The World Community Grid had given me so many tasks and I think my computer had finished it, but then checking my credits on the BOINCSTATS, only MilkyWay@home is shown. How could the processing power of 3 100% CPU-enabled idle computers running at almost 24 hours had only a few credits over a project it did the least?
I've listed my procedures above, so tell me if there are any mistakes.

Are you using the same account name for all the projects?

You're registered WCG Member Since 20/12/10 (yesterday)
WCG stats are updated at 00:00 UTC and new members get tasks with a quorum of 2.
Both tasks (from you and your wingman) should have returned and validated OK.

Just a simple question!

In WCGC page I have over 280,000 points but here it only shows about 40,000 points. Daily is about 1k or 1.5k. Why is it so slow to update to the real WCGC number?

Up to about 3 years ago, WCG was a stand-alone project.

. . . when they came over to BOINC they set their points to be equal to 1/7 of a BOINC point.

The BOINC figure is correct.