$99 is not bad at all to upgrade your php, although I don't have the important details (it appears you have ofumusic.com, terrylove.com, terrylove.info and terrylove.tv on a dedicated server?, hosting company have backups or do you keep your own?, you have access to a restore system?, they upgrading your vbulletin?, they use a test site before playing with your production site?, you have your own dedicated sql db?, they promise your search to be working?, they have 24/7 support when/if the upgrade goes bad?, etc.) If I didn't know you from Adam, I couldn't do it for $99 - nowhere near that. But like I said, I'd be pleased to help out for free in appreciation for the help I get in this forum (from a select few here).
I'd shoot it to you straight if I thought you were being ripped off. Unless you have a bit of technical experience and a technical guru by your side, it's not a DIY project. I may take a chance or two not holding on to a toilet tank with one hand while cutting a bolt, but I'd never do an upgrade to a production site without first restoring the entire site to a local machine (it's "easy" using WAMP), then doing the upgrade, then testing, then applying it to the live site (I do this with sites that are well over a gig backed up and compressed, with a 2TB drive I have to play with..space is cheap nowadays). There's more to doing it properly than meets the eye, and for $99 I'm willing to bet they skipped the testing phase, went straight to your live site and relied on your backup system if anything went wrong (hope you have impeccable backups..I know I do..even keep copies at 2 locations in case of a fire). Not that that was a "bad" way to do it, just riskier is all. You don't want to tackle an upgrade in case something goes wrong with it, you stand to lose a lot with this good thing you have going here. Generally speaking, your uptime is great as far as I can tell - site's always been up when I have accessed it.
This is my server uptime:
[root@mr1 ~]# uptime
21:03:26 up 737 days, 23:55
Which means I have an insane UPS system as well, since that server sits in my home office it's susceptible to outages. Not a single break-in (lots of attempts though), power loss, virus, or blip on the radar since I personally put that beast together 737 days ago.
Now you can look into Cyb Paypal Donate for Vbulletin ;-) It's pretty nifty.