Besides the original OpenLab , OpenERP original reports engine require changes and modification of reports to be a skill python based developer or the recent released powerful webkit report engine which require you tohave a good command of HTML and knowledge of MAKO template before you can develop further for a more complicated report .
For Report designer , GUI based openERP Report engine used to be only available through Jasper Report , a JAVA based powerful BI tools , but to get Jasper Report works we will most likely require to install module or library which at least 80 ~ 100 MB , for us an old timer windows development from Borland Delphi , we are familiar with lots of good reporting tools , one of the report engine that we have been toying for openERP is "ReportMan" where it has a python based interface , you can find it here.
Since 4 years ago , we have started of with OpenERP (TinyERP) version 4 in Malaysia , we have been started to use it for our OpenERP custom reporting purposes , until lately , when there are more custom reports requirements , we are also in need to deploy into LINUX platform , this has challenge our skill to further develop this interface ,port it into a LINUX and MULTI-Company compatible.

These will let InstantERP , the Localized OpenERP Malaysia community to have more options in terms of customizing their reports.
Cheers and happy openERPing !
Update Contact :
No Wa/Telepon (puat) : 085267792168
No Wa/Telepon (fajar) : 085369237896
Email : Fajarudinsidik@gmail.com
No Wa/Telepon (puat) : 085267792168
No Wa/Telepon (fajar) : 085369237896
Email: Fajarudinsidik@gmail.com
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