Are there any 6.0GB/s sata add on cards that run on PCI-Express 1.0 and not 2.0.

I got a older MB and they don't come with PCI-E 2.0 ports and I want to get a SATA III SSD but to get the full potential I need to get SATAIII ports....

To get a good card that will actually be reliable you are going to pay ~$100. Just buy a new motherboard and be done with it. Any SATAIII card under that will be some shitty jmicron chipset with terrible drivers and you wont want to use it as a boot drive.

Problem is I got a 775 CPU and MB with 775 CPU dont come with 6.0 sata ports

Save your money and put it toward an upgrade. 775 is quite old by now.

Its free, someone gave me a e8400 cpu and MB. I was thinking of building a 2nd computer so I don't have to share my Q6600 system.
I don't do much gaming anymore so old is fine. I just wanted to experience the new SSD that's all.

sata is backwards compatible.

I know that, but that is like having a Ferrari and only driving it 65 mph on the open freeway......

You are never going to notice the difference between a SATAIII SSD in a SATAII port vs. a SATAIII port. The only time you are going to notice is if you start running synthetic benchmarks for e-peen. Just get the drive and use it on the SATAII port.

it's going to be anyways still faster then a hard drive.

By a lot.