H E L P! Updated my iPhone and now LOTS of new problems never had before!

Question

Everything was working perfectly. Then I updated my iPhone and iTunes software (via the automatic update which notified me this week that a new version of one or the other was available so I said "yes" and figured everything would be ok as usual).
NUTHIN' but problems ever since and yes, I have rebooted my iPhone several times, quit and restarted my Mac, quit and restarted iTunes, turned off the iPhone and on again, et al. CONTINUE to have problems - I get message:
Cannot sync. Mac sayd - Device timed out (re my iPhone). iPhone says it's syncing but when I slide the slider, it just goes to the phone like it wasn't even syncing or anything.
Mac PBook 1.5 gig ram 10.4.10
iTunes 7.5 (19)
iPhone 1.1.2
Cannot get a call out via 611 for the usual AT&T support but CAN call regular phone numbers.
HELP!!!! Everything was fine before! What in the world happened here????!!!

Answer 1

"From the above alone, it has to be your computer, it is the only thing left related to the phone" That's nice but Apple says it's NOT the problem so I'm not sure how it is you think you know more than they do. You know what the Genius bar guys said (all 3 of the ones I worked with)... they say they read a lot of stuff on this forum that is completely off and just full of BS and that people here tend that I should definitely take analysis and advice - such as yours - with a large grain of salt. Had you paid attention to my posts, you would have read back there that I DID bring my computer to them and they went through it and determined it was NOT the computer/Mac. THEY DON'T KNOW WHAT THE PROBLEM IS and you have less experience than they and you think you know what it is... I don't think so, buddy.
You must have stock in Apple to be so quick to come to their defense. Having myself worked for Apple, I know that Apple does its best to LOOK AT WHAT WAS DONE RIGHT AND NOT RIGHT and make improvements. And I worked on a committee that dealt with support issues. They want to know when a user feels they have not gotten what they paid for vs. your kind of defensive blather. Give it a rest, ok? I CLOSED MY CASE and Apple has already asked me to give them feedback about my experience - MY experience... not yours or colored by your opinion.
This forum is not for opinions. It's for straightening out technical issues so give it a rest and get back to the issues here which are technical only, period.
PS The amount of time required by me to go to Apple (3 visits now) out of a work day has now cost me more than the amount of money spent by Apple to replace this stuff which they say they don't know what is wrong with. And the cable you mention... they didn't swap it out. They did not replace the cable in the end - they gave me a used cheaper cable to use upon the first visit and the 2nd visit, instead of replacing the original cable, they swapped out the phone. And I have lost about 3 days on a schedule for work which I'm already behind on.
Last words - CASE CLOSED. NO FURTHER COMMENTARIES, et al needed, period.