Need Help with PHP 5.1.1

[Millonario]

Dear Brian:

Seems to be that I have encountered with a problem that zend should solve.

I've installed your calendar on a WinXP Pro Server with php 5.1 and MySql 5.0.16

Of course I installed Zend Optimizer 2.5.10a and found our that this optimizer is not compatible with php 5.1.1.

Several forums say that the upgrade should be available at least in two weeks.

I decided to go with this versions because older ones stated that mysql client was not able to use the requested connection or something like that.

What should I do, need to have this working in 3 days for demo purpose and buying decision.

Thanks in advance for your fast reply.

Regards from Panamá

B.