Actually, Amos already has plugin for growth curve modeling. So, i think it should be ok 

I am using the plugin, but when I try to predict the slope (add an observed predictor), it does not let me to draw an arrow between  the predictor and slope.. 

Then, maybe you have to draw the slope and intercept manually

I found out what was the problem. Instead of correlating the latent variables, I had to correlate their error terms and delete the correlation between the latent variables themselves. Then an arrow could be added to the slope and intercept. Thanks!

Thank you for sharing the solution. I got stuck and this is the only place gives me an answer!

I recomemded