Hi llucax, thanks for the feedback! Version 0.7 (due soon) includes some jQuery updates. Hopefully this will address your problems.
To be clear, the plugin relies on the default WP jQuery library (i.e. the one in the core, unless you use something like Use Google Libraries, which will override it with the one from Google's API library). It also uses the default jQuery UI core. It uses its own copy of jQuery UI Datepicker, which was version 1.7.3 until 0.7, which will use the latest (1.8.16).
There are issues with the
gmap field type's "Find address" tool, because we use
autocomplete, which was dropped from WP core in 3.0 in favour of
suggest. We didn't notice because we run Use Google Libraries by default, and the jQuery UI from Google seems to include
autocomplete! Until we manage to convert to
suggest, we advise using the Use Google Libraries plugin.