Flashes of light in space. What was it?

I need help trying to figure out just what I was viewing the other night.

Date: 5/25/2011

TIME: 10:30 to 11:00 PM

Section Of Sky: 14h -30 degrees

Between eastern array of stars in Crater and above Centaurus.

No moon, clear skies.

Flash of light - between 1 and 2 mag - in the center of field.

Seconds later a flash of light above the center.

Seconds later a flash of light below the center.

Second later a flash of light to the west of center.

Seconds later a flash of light to the east of center.

Between the third and fourth flash, just at my horizon, an
elongated fuzzy pink blob of light moved east to west, very fast
across the horizon between 15h and 14h. It looked like I could
only see the top of the elongated blob.

Seconds after the fourth flash, the flash of light moved to the
east. Then, proceeded to flash intermittently on an eastward
moving arch until the last flash at my horizon.

What the hell was I looking at?

I have checked the star charts, space weather.com, etc., etc. At
first I thought I might be seeing the Shuttle, or something like
that. But, I find no documentation to back that conclusion.

Help!