^^^That was incredibly hard to read. Anyway, no where has it been stated that Archer was supposed to meet Kirk (in fact, Kirk won't be born for another 79 years).
First of all, the premise of Enterprise is about a "Temporal Cold War", just like DS9 was about Prophets (long before the Dominion was contrived), time travel is unavoidable in a Temporal Cold War - hence the term "temporal" - and seriously, if you don't like it and think it donkey crap, then don't watch it. Simple solution to an even simplier problem.
Next, the alien was clearly not a Xindi reptilian, and looked more Reman than anything else we've seen before.
Finally, the Yosemite 3 station was destroyed before the weapon was destroyed AND before the sphere network was brought down - so at that point, it would seem we were still in the year 2154. Has it occured to anyone (those that are in this thread for constructive purposes - not destructive "Enterprise bashing") that THAT in itself may have had the effect on the timeline - all of those things exploding and the already strange physics of the Expanse? Think about it: the Xindi, and the Enterprise were in the Expanse, consumed within all of its unique properties - combined with yet unseen affects of the final battle with the Spherebuilders. Becuase of where they were, they all could have been immune to the changes in the timeline, if indeed any really occured. This rings true because the Aquatic Xindi ship dropped Enterprise off at Earth and is thusly in the same time period. It also may be that the explosion of the 'weapon' had something to do with causing the time change on Earth. The logic behind this is that in the last episode ("Countdown") the Spherebuilders used their magic to make that energy cloak around the Xindi 'weapon' and that could have had otherwise unseen effects to the weapon that were revealed when the weapon exploded...thusly creating a 'time bomb'. Stranger things have happened - look at "Past Tense" (DS9) where a chroniton particle build up in the [Defiants cloaking device and made its transporter transport through time and at the same time allowed the ship to be unaffected by changes in the timeline that occured thereafter.