[Jonathan Young]

If you go over the guide, you will be fine, keep the config files. The only file that has changed the sql.cfg, just overwrite it and if you use that to store things, then just change the settings, that's all that needs to be changed in configs. Now, overwrite everything, download all your heroes and plugin smas and compile them using other the 1.75a compiler or the web compiler, then upload all the amxx files to the plugins folder and then your done.